Alternative Routing On Detection Of Failed Sip Response; Active Sbc Call Continuity During Ha Blade Switchover - AudioCodes Mediant 3000 User Manual

28.11 Alternative Routing on Detection of Failed SIP
Response
The device can detect failure of a sent SIP response (e.g., TCP timeout, and UDP ICMP).
In such a scenario, the device re-sends the response to an alternative destination. This
support is in addition to alternative routing if the device detects failed SIP requests.
For example, assume the device sends a SIP 200 OK in response to a received INVITE
request. If the device does not receive a SIP ACK in response to this, it sends a new 200
OK to the next alternative destination. This new destination can be the next given IP
address resolved from a DNS from the Contact or Record-Route header in the request
related to the response.
28.12 Active SBC Call Continuity during HA Blade
Switchover
The device maintains active SBC call sessions during a blade switchover when in High
Availability mode. Upon active blade failure, the standby blade takes over and current SBC
calls are maintained and not disconnected.
User's Manual 434
Mediant 3000
Document #: LTRT-89729