SIP Authentication
From TBwiki
SIP Authentication is a stateless challenge-based mechanism which ensure user's identity. Authentication challenged can be asked for Invite and Bye methods.
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TelcoBridges and SIP Authentication
TelcoBridges can handle SIP Authentication differently according to your network
- IP to IP calls (FreeSBC)
- TDM to IP calls (Tmedia)
FreeSBC
In the case of IP to IP calls, the challenge messages are forwarded between the SIP device and authentication server.
Invite callflow:
Bye callflow:
Configuration
By default, TelcoBridges' products will forward challenge messages
Tmedia
In the case of TDM to IP calls, the authentication needs to respond to the authentication challenges.
Invite callflow:
Bye callflow:
Configuration
The Tmedia needs to configure the 'Authentication Parameters' section in each SIP NAP that requires to respond to the authentication challenge.
