SRST // call forward

Unanswered Question
Jul 1st, 2010
User Badges:


If a site goes into srst mode:


If they had their phone forwarded, will it “stay” forwarded and will that keep working?


Can users forward / unforward their phones while in srst?


Thanks.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
Rob Huffman Thu, 07/01/2010 - 08:44
User Badges:
  • Super Blue, 32500 points or more
  • Hall of Fame,

    Founding Member

  • Cisco Designated VIP,

    2017 IP Telephony, Unified Communications

Hi there,


The Call Forward setting is lost during SRST except for Call Forward Unregistered;


This good TAC doc


Core Issue


IP phones continue to send keep alives to the Cisco CallManager every 30 seconds. When the link goes down, the keep alives are missed. Once there are three consecutive keep alive misses, the IP phone un-registers with the Cisco CallManager and the phones register with the Survivable Remote Site Telephony (SRST) router. Since it is set to three consecutive keep alive misses, it takes 90 seconds for the phone to register with the SRST router.



Resolution


During SRST failover, the phone unregisters with any or all CallManagers which hold the call forward destinations. All call forwarding information is lost if a phone loses the connection to the CallManager it is registered to and registers with SRST.


Incoming calls that reach a busy signal or go unanswered during Cisco CallManager fallback can be configured to forward to one or more E.164 numbers. This is where the Call Forward Unregistered kicks in.




https://supportforums.cisco.com/docs/DOC-2649


Cheers!
Rob




Please support CSC Helps Haiti


https://supportforums.cisco.com/docs/DOC-8895


https://supportforums.cisco.com/docs/DOC-8727

Actions

This Discussion