FoundationsFoundation
SIP & VoIP Fundamentals
Understand exactly how a voice call works on an IP network, from SIP signalling and SDP negotiation to RTP media, codecs and QoS.
Foundation for 350-801 CLCOR
- Video
- 14 h
- Labs
- 5
- Lab time
- 10 h
$149
SIP & VoIP
SIP Training for Voice and UC Engineers
Learn SIP the way senior voice engineers use it: reading traces, negotiating media and isolating faults across CUCM, CUBE, Webex Calling and Microsoft Teams.
Why our sip training
Training built by working engineers
Trace-first teaching
Every concept is taught from real SIP traces and packet captures, not just slides.
Vendor-neutral
Skills that transfer to Cisco, Microsoft and any SBC or carrier you'll meet.
Troubleshooting method
A repeatable isolation method that shortens incident time on day one.
What you'll learn
Skills covered in our sip training
- SIP methods, responses, dialogs and transactions
- SDP offer/answer and codec negotiation
- RTP, jitter, loss and QoS
- DTMF methods and interworking
- NAT, TLS and SRTP
- Fast fault isolation from traces
Hands-on
Practise on real topologies
- SBCProfessional
SIP Troubleshooting Masterclass
A structured method for diagnosing failed calls, one-way audio, DTMF and registration problems from SIP traces, CUBE debugs and packet captures.
Supports 350-801 CLCOR
- Video
- 12 h
- Labs
- 4
- Lab time
- 16 h
$199 - SBCProfessional
Cisco CUBE Professional: SIP Trunking & Interworking
Master Cisco Unified Border Element: dial-peer design, SIP normalisation, security, transcoding, high availability and real carrier troubleshooting.
Supports 350-801 CLCOR
- Video
- 22 h
- Labs
- 7
- Lab time
- 28 h
$349
Virtual labs
Labs you'll use
5 exercises
Cisco CUBE Labs
A full SIP trunking edge: CUBE, a simulated carrier and a CUCM cluster. Ideal for dial-peer design, SIP normalisation and security practice.
PSTN simulator ↔ CUBE ↔ CUCM cluster ↔ endpoints
GuidedSelf-pacedRentalEnterprise
FAQ
SIP Training: common questions
Do I need SIP knowledge for CCNP Collaboration or MS-721?
Yes. SIP and media negotiation underpin both, and most real-world troubleshooting is SIP troubleshooting.
Is SIP training useful for Microsoft Teams engineers?
Very. Direct Routing is SIP over TLS between your SBC and Microsoft, and most Direct Routing issues are diagnosed from SIP traces.
What tools are used in the labs?
Wireshark, SIP softphones and test endpoints, Cisco CUBE debugs and our carrier simulator.
Start your sip training today
Buy a single course, or get every course and 60 lab hours a month with All-Access.