B2BUA with Survivability Feature
Klimov Andrey · 2009
This draft describes the behavior of Session Initiation Protocol (SIP) [RFC3261] Back-To-Back User-Agent (B2BUA) with survivability feature, we can define it as a survivable SIP proxy (SSP), and how it should process calls in two different modes one is normal (no- failure) mode and the other is survivable (breakdown) mode.