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6911's won't register in SRST Fallback mode

Lynn Hedspeth
Beginner
Beginner

We have 4 remote sites all with 2901 routers, and a mixture of 7962's, 7942's, and 6911's. I have less than 20 devices setup in separate common device pools for each site. The 7962's, and 7942's register flawlessly when the network is interrupted back to the Call Manager, but no 6911's register. We are running CM 8.5.

6911 running 9-1-1-0
2901 IOS 15.0(1)M6
CM version 8.5.1.11900-21
All phones expecting SRST fallback are in a common Device Pool for that site.


Any ideas.

Lynn Hedspeth, CET

2 Replies 2

ronpatel
Collaborator
Collaborator

Hi

Send us debug ip tcp packets and deb tftp events

Regards
Ronak Patel

Rate all helpful post by clicking stars below the answer.

Regards Ronak Patel Rate all helpful post by clicking stars below the answer.

Rob Huffman
Hall of Fame Community Legend Hall of Fame Community Legend
Hall of Fame Community Legend

Hi Lynn,

I would have a look at the great answers from Chris in this good thread (+5 "C")

https://supportforums.cisco.com/message/3559182?referring_site=bss&channel=bdp#3559182

Cheers!

Rob

"Hours are like diamonds, don't let them waste
Time waits for no one, no favors has he" 

- Stones

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