CounterPath Bria 2.2 User Guide - Manual (Page 6)

CounterPath Solutions, Inc.
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• Automatic selection of the best codec based on the other party’s capability, the available bandwidth, and
network conditions. Bria switches the codec within a call in response to changing network conditions.
• SIP compliance to 3261 SIP standard.
• XMPP compliance as follows:
• RFC 3920
• RFC 3921
Supported extensions:
• XEP-0004
• XEP-0016
• XEP-0022
• XEP-0077
• XEP-0085
• XEP-0092
• XEP-0115
• STUN and ICE NAT traversal. XTunnels for firewall traversal.
• Support for DTMF (RFC 2833, inband DTMF or SIP INFO messages).
• Support for languages.