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Change Log

This 'Change log' page is to be used as a guide to see what has changed in our programs so that if you want to update your certification test, you can see what's been added since you passed the test.  New additions to the course will also have been added into the relevant exam.  It's up to you whether you decide to renew your training license to see the new material or choose to fill in the gaps using other materials, books, websites etc.

SSCA® 'Elite' SIP training [February 17th 2022]

Changes to the STIR/SHAKEN module have been uploaded to the program today.   These changes were made to bring the content up to date in line with updated mandates from the FCC as well as new technical documents from ATIS.

These are the areas that have been either updated or added as new.

  • Simple Definitions
  • Certificate management for STIR/SHAKEN
  • What’s happening in Canada?
  • Attestation
  • The ‘Attestation gap’
  • Delegate Certificates
  • TN Databases
  • Registered Caller
  • What is Rich Call Data?
  • Will RCD ‘reach’ all handsets?
  • +1 Numbers and Scenarios
  • What’s happening in the UK
  • UK ‘Challenges’
  • How will OOB progress?
  • Call Blocking
  • The FCC Robocall Mitigation Database

These changes will be reflected in the SSCA 'Elite' test in two weeks' time

SSCA® 'Elite' SIP training [August 3rd 2021]

Today the SSCA® officially becomes the SSCA® 'Elite'.   For more information on why this has happened and what makes the new SSCA® 'Elite' special - see this page

SSCA® SIP training [March 22nd, 2021]

A lot of changes today that include:

  • A lot of new content with new modules
  • A new course module Route Map, replacing the old 'Circle of SIP'
  • Removal of support for FLASH - it's HTML5 only from now on.

There have been a lot of bug fixes, updates, removal of old/outdated material, and inclusion of a lot of new material to reflect on SIP and its support for Cloud solutions, Cellular networks, and UCaaS as well as introducing CPaaS.   Here is a list of all the changes.  Note, the SSCA exam will reflect these changes on April 5th 2021 and onwards.


  • Updates to SDP RFC


  • Updated Test numbers
  • Updated Clients for testing
  • SIP phone in a Browser
  • SIP Browser clients
  • Use the Cloud
  • PCAPs from ‘other’ places


  • Codec and Bandwidth Considerations
  • Replacement Voice Codec samples

SIP and Media Security

We have changed the name of this module to emphasize the focus on Security and also due to creating a separate module for STIR/SHAKEN.  Also...


  • Certificate Authorities
  • Certificate Example
  • The Certificate application process
  • Installing your new Certificate
  • Backup your Private key
  • Self-Signed Certificates
  • Public Key Infrastructure - PKI
  • TLS – Transport Layer Security
  • TLS in Action
  • TLS 1.2 Capture example
  • TLS 1.3
  • SSL/TLS checking
  • Securing SIP Signalling and then the media
  • TLS and SIP in action
  • Combinations of what you may see…
  • Types of Attack on a VoIP/SIP Network
  • Responses and Protection


Part of this module was in the SIP security and identity module

  • Introduction and topics
  • Who’s calling?
  • The PSTN Caller ID Spoofing problem
  • The ‘scale’ of the problem (USA)
  • Caller Identity
  • Caller Identity
  • Enterprise Identities
  • P-Preferred and P-Asserted
  • Spoofing
  • Spoofing a number - Video
  • Robocalling and more
  • Why this is a problem
  • A First Step: STIR/SHAKEN
  • STIR/SHAKEN in a Nutshell
  • What is a PASSporT?
  • Haven’t I Heard of SIP Identity Already?
  • STIR/SHAKEN Architecture
  • Signed INVITE Example
  • PASSporT Token from Example
  • PASSporT Token in JSON
  • PASSporT Token Protected Header
  • PASSporT Token Payload
  • The ‘digital signature’
  • Fetching Certificate
  • Success Call Flow
  • Failure Call Flow – Missing Identity Header
  • Failure Call Flow – Bad Identity Header
  • Certificate management for STIR/SHAKEN
  • Partner system
  • STI Certificate for Authentication
  • Attestation
  • The SIP School ‘test system’
  • Verstat
  • STIR/SHAKEN in action
  • Video - Authentication to Verification
  • Service providers with SHAKEN
  • Enterprises and the ‘A’
  • The ‘Attestation gap’
  • How to ‘fix’ the gap – some options
  • Delegate Certificates
  • Delegate Certificates base PASSporT
  • Delegate Certificates for OTT providers
  • Enterprise Certificates
  • TN Databases
  • Distributed Ledger
  • Trust
  • Getting ‘Creative’
  • Which option is best?
  • Rich Call Data
  • What is Rich Call Data?
  • Rich Call data location
  • Adding Rich Call Data
  • Rich Call Data in the token
  • RCD jCard / rcdi
  • RCD and Delegated certs
  • International STIR/SHAKEN
  • International Attestation
  • ATIS and International calls – Bilateral
  • ATIS and International calls – Central Registry
  • Out of Band STIR/SHAKEN
  • Why is this a problem?
  • Out of Band (OOB) STIR with TDM
  • Another OOB example
  • Call Diversion
  • Diverted call flow
  • “div” in a SIP INVITE
  • “div-o”
  • Call Analytics
  • An overview
  • What’s happening now
  • The Traced Act
  • Where are we now?
  • ‘Other Services and Techniques
  • Brining it all together
  • Possible extensions
  • FCC mandate
  • Robocall mitigation
  • Find the call originator
  • Industry Traceback Group (ITG)
  • Resources
  • ‘Some’ other companies offering STIR/SHAKEN
  • ATIS testbed
  • STIR and SHAKEN references
  • STIR/SHAKEN conference
  • Best practices.


  • STUN RFC 8489
  • Request and Response example
  • TURN (Traversal Using Relays around NAT)
  • ICE tags
  • ICE Client settings
  • More on ICE
  • SBCs in the Cloud / as a Service

SIP Trunking

  • SIP Trunk Security - Overview
  • ‘Finding’ an ITSP

Testing / Troubleshooting and Interop

  • Jitsi, Blink, Bria Solo and PhonerLite setup – reminder.
  • Get ‘another’ SIP account
  • Using ‘Test Numbers’
  • More options for Packet Capturing
  • Alternatives to Wireshark
  • Voip-info for more tools!
  • Using the NET to find answers

SIP in the Cloud

This module has been created by separating out the old 'SIP in the Cloud with the IMS and VoLTE' into two modules... This one called 'SIP in the Cloud' and a later one called 'SIP in Cellular networks'

  • The Cloud and ‘Anything as a Service’
  • Pizza as a Service
  • IaaS / PaaS / SaaS
  • SaaS in ‘reality’
  • What is Virtualization?
  • Virtual Machines
  • Emulation
  • Virtual Machines (contd.)
  • Network Functions Virtualization (and VNF)
  • SBCs in the Cloud / as a Service
  • Virtualization of the PBX
  • Our own Network examples
  • Moving to the Cloud
  • Example with - AWS / Azure and Twilio
  • Call flow in the example ‘Cloud based’ system
  • Video demos of ‘Cloud systems’
  • Visualising the migration to the cloud
  • Cloud marketplaces
  • Azure – Anyone VM SBC
  • RDP connection to the SBC
  • Anynode configuration
  • SBC and Twilio
  • AWS instances
  • AWS and 3CX (PBX)
  • SBC, PBX and Twilio
  • Capturing the ‘Cloud call’
  • Troubleshooting
  • Troubleshooting a cloud service
  • What to look for – Dashboards
  • What to look for – PCAP files
  • Monitoring across cloud-based services

SIP in Cellular networks

This module has been created by separating out the old 'SIP in the Cloud with the IMS and VoLTE' into two modules... This one called 'SIP in Cellular networks' and the earlier module in the program, called 'SIP in the cloud',  slides that are new or have had content changed are listed below.

  • 4G, LTE, LTE Advanced LTA-Pro, WiMAX2
  • 5G
  • Benefits of 5G
  • 5G service examples
  • Voice over 5G
  • 5G – NSA Option 3x (and more)
  • Mandatory Codecs
  • SIP in 5G
  • Summarizing the state of 5G
  • Resources
  • Coverage Checker

SIP in UC, UCaaS and CPaaS

  • IM Client Examples and Features
  • Clients and UC providers
  • More IM Clients
  • Migrating to UCaaS
  • UCaaS, SIP and the WAN
  • CPaaS and APIs
  • Introduction to CPaaS and APIs
  • What is an API?
  • Communications API examples
  • REST APIs and more...
  • More examples of API use with your PBX
  • Creating CPaaS applications
  • Creating an IVR
  • UCaaS v CPaaS

Networking for VVoIP [February 17th 2020]

Changes made to the course today mainly comprise of bug fixes and link updates. Also, the HTML5 output has been updated for all modules giving it a more responsive feel and a cleaner look. Content changes include more information on POE, VDSL2, VPNs, Troubleshooting with netsh and PowerShell, more on Wireshark and more on the new WiFi 6 standard. Always refer to the online PDF document where all content changes are highlighted in a blue/bold font.  

SSCA® SIP training [January 13th 2020]

Changes made to the course today mainly comprise of bug fixes, link updates, old content being removed and replacement SIP clients for those that have been discontinued by their vendor.   Also, the HTML5 output has been updated for all modules giving it a more responsive feel and a cleaner look.  Always refer to the online PDF document where all content changes are highlighted in a blue/bold font.   

SIP and Cloud Advanced Sales [December 8th 2019]

Lots of changes made to this program today including New content on GDPR, HIPAA, SD-WAN, XaaS / CPaaS, APIs and much more. Also, the HTML5 output has been updated for all modules giving it a more responsive feel and a cleaner look.  Always refer to the online PDF document where all content changes are highlighted in a blue/bold font.   

WebRTC [July 29th 2019]

WebRTC Developer training and the WSQD certification test are no longer available.  The WSQD certification still remains valid for the 2 year period from passing the test and anyone with a valid WebRTC Developer license will still be able to access the content.  WebRTC Integrator remains a strategic product for Vocale Ltd, the owner of The SIP School and WebRTC School.

SSCA® SIP training [January 25th 2018]

Lots of brand new content, bug fixes have been uploaded today.  For the full list of changes, please refer to the online PDF document where all changes are highlighted in a blue / bold font.   

Core SIP

  • What are ‘Requests for Comments’ – RFCs?
  • More than just 3261
  • IETF Working groups
  • Based on HTTP
  • INVITE – Example
  • RESPONSE (200 OK) – Example
  • Support and Require Headers
    • Timer (Session Times)
    • 100rel (PRACK)
  • An SDP Example
  • Extending SDP
  • SDP Example - Put a call on Hold
  • SIP Call Forking - Parallel
  • SIP Call Forking - Sequential
  • Dialog trace example
  • Branch Ids
  • Replaces header
  • Diversion headers
  • History-info
  • VIA Details
  • Record-Route Defined


  • Free DID and Credit

SIP and the PSTN

  • SIP to PSTN Call Flow
  • SIP Codes and the PSTN
  • Early Media explained
  • Early Media - SIP to PSTN Call
  • Gateways and expectations
  • Addressing Notes
  • Inband vs Out-of-band
  • RFC 2833 ‘Trace’ example
  • RFC 4733 replaces 2833

Firewalls, NAT and SBCs

  • NAT Hairpinning
  • Media Hairpinning/Tromboning
  • New Terminologies
    • Mapping and Filtering
  • Endpoint Independent Mapping
  • Address Dependent Mapping
  • Address and Port Dependent Mapping
  • NAT Filtering Rules
  • The NAT problem
  • The NAPT or (PAT) Problem
  • The Firewall Problem
  • VIA received parameter
  • VIA rport parameter
  • Request and Response example
  • What is Virtualization?
  • Virtual Machines
  • Emulation
  • Virtual Machines (contd.)
  • Network Functions Virtualization (and VNF)
  • SBCs in the Cloud / as a Service

SIP trunking

  • Multiple Site, ‘Converged’ + Multiple SBCs
  • Trunk ‘bursting’
  • Elastic SIP
  • WAN Optimization, Hybrids and SD-WAN
  • Software Defined WANs explained
    • Orchestrator
    • Policies
    • SD-WAN device capabilities
  • Registration Mode
  • Static Mode
  • SIP trunk configuration on ‘sample’ PBX
  • Outbound ‘Dialling’ Rule
  • Calling across the trunk
  • Call analysis with Wireshark
    • Call Flow
    • SIP ladder

ENUM, Peering and Interconnect

  • Why ENUM?
  • DNS Response to an ENUM query
  • NAPTR and DNS records
  • Different ‘Types’ of ENUM
  • ‘Carrier’ ENUM and
  • Multi-lateral Peering
  • Back to ENUM
  • A complete ‘infrastructure’
  • Who’s involved?
  • Network-to-Network interface [NNI]
  • ATIS and the SIP Forum for NNI
  • Benefits of SIP NNI
  • History of IP NNI Effort
  • Layers of Interconnection
  • IP Interconnection Profile
    • IP Interconnection Routing
    • IP NNI Profile
  • IP NNI Trust Model
  • Identities
  • Codecs
  • DTMF and Fax
  • Fault Isolation and Troubleshooting
  • QoS
  • SIP-Specific Details of IP NNI
  • IP Interconnection Routing
  • Aggregate Approach
  • Per-Telephone Number (TN) Approach
  • What’s Next for NNI


  • Dynamic [RTP Payload type]
  • MOS, R-Factor and High Definition (HD) Voice
  • Variable bit rate / Constant bit rate codecs

SIP in the Cloud, LTE, the IMS and VoLTE

  • Zero-Touch Provisioning
  • Zero-touch example
  • Cloud and SIP trunk Config overview
  • Configuring a SIP trunk on the ‘Hosted’ PBX (in the Cloud)
  • E.164 Outbound routing example
  • Calling from Softphone via Cloud PBX
  • PCAP for analysis

SIP Security and Identity

  • Encryption types (Symmetric / Asymmetric)
  • Keying and Hashing
  • Certificate Example
  • TLS in Action
  • TLS and SIP in Action - recommended
  • More on TLS and SIP
  • ‘SIPS’ addressing
  • Enterprise PSTN Identities
  • P-Preferred and P-Asserted
  • CNAM
  • The PSTN Caller ID Spoofing Problem
  • Types of Fraudulent calls
  • Why this is a Problem?
  • A First Step: STIR/SHAKEN
  • STIR/SHAKEN in a Nutshell
  • What is a PASSporT?
  • Haven’t I Heard of SIP Identity Already?
  • STIR/SHAKEN Architecture
  • Signed INVITE Example
  • RFC 4PASSporT Token from Example
  • PASSporT Token in JSON
  • PASSporT Token Protected Header
  • PASSporT Token Payload
  • Fetching Certificate
  • Success Call Flow
  • Failure Call Flow – Missing Identity Header
  • Failure Call Flow – Bad Identity Header
  • Next steps and references

Testing, Troubleshooting and Interoperability

  • Your Setup
  • Using SIP IP Phones and Softphones
  • Jitsi, Blink, X-Lite and PhonerLite setup – reminder.
  • Linphone, Media 5 and WeePhone SIP setup - reminder
  • Choosing a ‘Trial/Test’ ITSP
  • Get ‘another’ SIP account
  • Where to ‘capture’
  • More options for Packet Capturing
  • Wireshark ‘Revisited’
  • Colours and the Intelligent Scrollbar
  • Packet ‘Marking’ and ‘Comments’
  • New Packet Window
  • Exporting ‘Specified’ Frames
  • RTP Streams
  • TShark (Terminal-based Wireshark)
  • PCAP-ng and PCAP formats

SSCA® SIP training [May 18th 2017]

Today sees the update for both the Wireshark and the Testing, Troubleshooting / Interop modules going live

At lot of changes here which include...


  • New Videos to reflect the new Wireshark interface 
  • Updated clients to use 
  • Free DID number and (limited) credit 
  • Videos covering... Display / Capture Filters 
  • Profiles, 
  • Call and INVITE analysis 
  • Intelligent Scrollbar 
  • Colouring Rules and more 

Testing, Troubleshooting, and Interop:

  • Where to Capture 
  • Other ways to get PCAP files 
  • More on Wirehark re: the PCAP-ng file format 
  • Packet Comments 
  • RTP Stream analysis 
  • TShark 

SIP and Cloud - Advanced Sales [March 2nd 2017]

Today sees the update for SIP and Cloud - Advanced Sales going live.   We’ve made a number of changes to the module which mainly consist of changing the software clients used to demonstrate presence and messaging.  We’ve also introduced an element of UCaaS as well as fixing a few minor bugs.   We hope you like the changes and stay tuned for more really soon.

SIP and Cloud - Advanced Sales [August 11th 2016]

So we've been working hard at updating the old SIP Communications for Sales program and included a lot more on Cloud, Mobility and other material to bring this program right up to date.  To reflect on the emphasis in selling Cloud services as well as UC and SIP trunking we've both changed the name of the course and the certification test.  The program is designed for anyone involved in the sales process for communications services today whether on-premesis, in the cloud or a hybrid solution.

So see what's in the program, click on this link for a curriculum PDF

For a Demo, click on this link

Also, existing certification holders will be able to use the new SSSP™ logo that is the first of a rebranding program for all of our courses, stay tuned for more.

SSCA - SIP [June 4th 2016]

Skype for Business and SIP trunking

Great news for students today as our new partners tekVizion have provided a ‘Skype for Business’ environment for students to logon and see how SIP trunking is configured and also to create test calls across a SIP trunk to the PSTN.  This great system is called onTAP and allows you to run Skype, Cisco Call manager and more (soon) if you sign up for their service.  The benefit to students of The SIP School is that they will be able to see how SIP trunking works from one of the largest vendors in the market.  This can only make the SIP trunking section of the SSCA training program even stronger.  For more information on the new partnership please take a look at this PRESS RELEASE and to read more about tekVizion, please click here…  

Networking 4 VVoIP is updated! [March 14th 2016]

So our Networking course has had more than just a content refresh, it has had a facelift with regards to the course look, feel and menu design.  It's also now iPad compatible with full HTML5 support.

The course content can be found in this PDF and don't forget the demo as well which includes a free module on DHCP.

SSCA - SIP [March 16th 2015]

BIG day here at The SIP School as the SSCA® SIP training program is updated…!

  1. Lots of New Content including a new module called SIP in the Cloud, LTE, the IMS and VoLTE
  2. SIP, VoIP and QoS becomes SIP, VVoIP and QoS to reflect on SIP’s importance in Video sessions
  3. We’ve updated most modules with their specific changes found in the Outline Doc where the new stuff is in a Bold Blue font.
  4. PLUS, we have made available (in Beta) the content in HTML5 format so it will run on your iPad or other Tablet device… (other courses to follow soon)

NOTE for SSCA exam takers… The changes to the training will NOT be reflected in the SSCA® certification test until the 24th March.  This means that if you are preparing to take your exam soon, the new stuff will not be part of the test at this point in time. 

We hope you like all the new stuff and thanks again for studying with us

The team @ The SIP School

SSCA - SIP [July 21st 2014]

New Content and New WAN Assessment system

Today we are very happy to have uploaded new content for the SIP training system.  Specifically, the module SIP, VoIP and QoS will be expanded with the following:

  • Packet Rate / Packets per Second
  • DSCP with Assured Forwarding
  • Link options 
  • Bandwidth vs Packets per Second
  • Network behavior analysis
  • Detailed, QoS ‘issues’ list
  • Decisions to make to improve Call Quality


Broadband WAN Assessment for SIP trunking with PacketSmart

One of The SIP School’s many good friends in the ‘Comms’ industry is Broadsoft.  Using their Packetsmart system you now have the ability to run ‘real' VoIP (and Video) simulation tests to determine if a WAN link has the capabilities of carrying your desired VoIP traffic or in other words, a full SIP trunking assessment test.

This testing system has been provided for free for students to use and we’d like to thank the team at Broadsoft for all their efforts in making this available.  The system is accessible from within the module SIP, VoIP and QoS.

We really hope you enjoy the new training and the new WAN Assessment system and please note:

If you are planning to take your SSCA® exam, then new questions relating to the new content (not including Packetsmart) will be added to the testing system database on the 20th of August and you may see these questions appear in your test.  If you take your test prior to the 20th of August you will not see questions on the new material.

Many thanks again for being a student of The SIP School

SSCA - SIP [January 15th 2014]

All modules have had some general fixes i.e. link updates etc. with module specifics being. 

Core SIP module
Updated introduction to SIP
Support and Require Headers
- Timer (Session Times)  
- 100rel (PRACK)  
Short form ‘compact’ Headers
Replaces header
Diversion headers
New Mobile client configs
- Media5 for testing  
- Linphone for testing  
- WeePhone SIP for testing  
Viewing online with Cloudshark
SIP, VoIP and QoS
Opus codec
Opus audio examples
Assured SIP Services
- Assured SIP intro
- Service Provider Architecture
- Proxy and Access Router functions
- Resource-Priority
- Video ‘example’
- Reason Header for Pre-emption Events
- More Proxy details
- Multi-Level Pre-emption and Precedence (MLPP)
- Summary
Firewalls, NAT and SBCs
ICE-Lite and Trickle-ICE
From SIP to WebRTC (and back)

SIP Trunking
Multiple Site, ‘Converged’ + Multiple SBCs
Hosted SIP
- What Hosted SIP service is
- Hosted functions and features
- Example Network including ‘failover’
- ‘Hosted’ clients in action
- Why Hosted – Benefits and things to consider
- Why on-site PBX – Benefits and things to consider
- ‘Finding’ an ITSP  
- Working together
SIP trunk connectivity items ‘from the field’

Testing, Troubleshooting and Interop
Media5, Linphone, and WeePhone SIP setup - revisited

SSCA - SIP [October 17th 2013]

Minor changes to the 'Testing Troubleshooting and Interop' module where references to (in the USA) + all configurations relating to this service have been replaced by other references.  Sipgate in Germany and the UK continue (at this point) to offer SIP services.

SSCA - SIP [September 26th 2013]

On Monday the 30th September, the latest round of updates will be uploaded to the training system for the SSCA® SIP training course.  There are a few content changes to the program (listed below) that do not affect the current SSCA® certification test, so if you've already studied a module, you don't have to repeat it.  Most of the changes are cosmetic with new images and an improved 'theme' throughout.  We've also fixed a lot of bugs such as broken links, references to old software and old IETF documents.

New content updates:

  • Description of IETF working groups
  • Updated Jitsi and PhonerLite client setup, X-Lite setup now included
  • Updated video re: Social Study directory
  • Opus codec mentioned
  • Update from Martini WG to RFC 6140
  • RFC 6913 re: sip.fax tag explained
  • Updated IM Client examples

Thanks again for being a student of The SIP School™

SSCA - SIP [May 29th 2013]

New content uploaded

Today we have uploaded some new content and as well as a few other fixes.

The module Firewalls, NAT and SBCs is the one with all of the major changes which are: 

  • UDP 'Hole Punching' added 
  • 'Hairpinning' explained 
  • Updates to the STUN slides 
  • Updates to the TURN slides 
  • Interactive Connectivity Establishment - 'ICE' theory 
  • ICE in depth, including candidate details 
  • ICE 'in practice' 
  • ICE 'tags' 
  • Configuring ICE in SIP clients 
  • More slides on SBCs added.  

Hope you like the new elements and updates to the SSCA® will be applied in 2 weeks time.

Networking 4 VVoIP [November 15th 2012]

Today we have released the biggest ever upgrade to our Networking 4 VoIP program and thus renamed it:

Networking 4 VVoIP where VVoIP stands for Voice and Video over IP.

All modules have had an update with most having new content added with special attention paid to Voice over IP.   As well as the existing modules we have added three new ones.

  • Video over IP
  • Hosted VoIP 
  • IPv6

These are really important areas in the world of networking and Unified Communications and by their inclusion, this training program will continue to be the foundation that suits all manufacturers, service providers and dealers that work with Data and VVoIP.

The full course outline is here and the course demo is here.

What is noticeable is that the price has not changed despite the extra material and all holders of existing Networking 4 VoIP licenses will see all the new material for free.

Regarding the certification test, the SSVP will be replaced by the SSVVP on the 29th of Novemeber.  This gives people who have just finished studying for the SSVP time to take the test before it is updated with new questions that relate to the new content.

SIP Communications for Sales and Marketing professionals [June 29th 2012]

New stuff includes:

  1. Lots of general updates re: Competitors and Pricing comparisons inc. US/Canada/UK and Global locations
  2. More on Hosted PBX especially how to compare Hosted PBX to SIP trunking offerings
  3. What Hosted PBX can and should offer
  4. How to describe benefits of Hosted PBX to clients
  5. Hosted PBX analysis spreadsheet for you to download
  6. Plus a 'Mini-module' that describes MPLS

There is a lot of valuable information in this program that will help Sales and Marketing people see what's happening in the market in order to build their own offerings, target their clients and make sales.


SSCA - SIP [February 28th 2012]

We're really pleased to say that all updates are now Live!

What this means is that some of the training modules have had some new content added (as per The SIP School promise) to keep the program up to date and fresh.  Please take time to revisit the modules to see the new stuff.

The SSCA® exam question database will not be updated until the 9th of March so if you have already revised the program and are looking to take the exam then you will not be affected until this date where a 'New' question may pop on the screen.

Ok, here is all the new stuff 

  • More on Ethical Hacking + examples
  • More SIP trunk deployment scenarios
  • Broadband connection examples
  • More on MPLS
  • More on SBCs at the Corporate edge
  • SIP Refer examples
  • Using NSLOOKUP and DIG for DNS / ENUM testing
  • Testing Video Codec interop issues
  • More on loose / strict routing
  • TLS 1.2
  • UC client comparisons
  • SIMPLE Working group update
  • RFC reference updates
  • Minor bug fixes and web link updates

SSCA® in English, German and Spanish...!

We’re working hard on getting language support up and running for the SSCA® certification test and it’s now live in English, German and Spanish.  We’ve got more languages on the way and any suggestions are welcome.

SSCA - SIP [December 15th 2011]

So after a few months of hectic writing The SIP school is pleased to roll out its latest updates to the SSCA® SIP training program.  There are the usual changes due to the ever evolving nature of SIP but most notably this time around is a brand new module on SIP and Fax over IP and quite a revamp of SIP trunking, which of course is the one thing everyone talks about in the industry.

Full update details can be found at this link

We felt that a module on SIP and Fax over IP was much needed as people are finding that the service works well, badly or not at all and as Fax just doesn’t seem to want to go away then it’s got to be made to work over SIP trunks.  The module teaches the basics of faxing, the transition to Fax over IP, the main FoIP protocols available and then heads off into troubleshooting and testing.  We hope that this module proves a hit and enables people to cope with this old technology running over brand new links.

SIP trunking has also been updated quite a bit with the inclusion of an ITSP checklist.  This list is designed to be a guide for people who are looking to sign up for SIP trunking services but are not sure how to start and what questions to ask.  It’s not an exhaustive list but we think it’s a good ‘stake in the ground’.  Anyone who uses the list and wants to offer suggestions for improvement will be helping everyone out as again, we’ll keep it updated.

SIP Communications for Sales and Marketing professionals [May 6th 2011]

"SIP Communications for Sales and Marketing professionals" is now Live and replaces the old SIP Trunking for Sales/Marketing program.  The reason being is that we've added in content to cover Unified Comms and Hosted PBX so it's not just about SIP Trunking anymore.

The new certification name / logo - SSMP™ stands for SIP Sales and Markeitng professional.  Any existing certified user will be able to see the changes on their certificate right away.


We decided not to include changes older than May 2011 as the courses (as you can see above) have continued to change significantly from their 'early' versions and thus we'd recommend that anyone who is looking to renew their certification that is older than May 2011 to renew their training license and go through the program fully.

SIP and Cloud - Advanced Sales [March 2nd 2017]

Today sees the update for SIP and Cloud - Advanced Sales going live.   We’ve made a number of changes to the module whic

SSCA® SIP training [May 18th 2017]

Today sees the update for both the Wireshark and the Testing, Troubleshooting / Interop modules going live

At lot of changes here which include...