SRST System Message 6921 Phones

[iwearing]

Hi all,

I have a number of 6921 phones which fail over to SRST mode,

However no system message is displayed on the phone to indicate that the phones are operating in SRST mode.

The Router is a 2911 with IOS version c2900-universalk9-mz.SPA.152-1.T.bin. System messages are configured on the Router as below.

call-manager-fallback

max-conferences 8 gain -6

transfer-system full-consult

timeouts interdigit 8

ip source-address 10.26.254.254 port 2000

max-ephones 25

max-dn 25

system message primary SRST

system message secondary SRST

time-format 24

date-format dd-mm-yy

Any ideas would be appreciated.

thanks

Ian

[casa_far]

I have the same problem configuring Srst with call-manager-fallback feature, I want to test If we have the same behaviour with telephony-service in SRST mode.

[tdudas]

Hello Ian,

I also have the same issue with 6921 SCCP and 9971 SIP phones. Did you manged to solve it?

Thanks!

Tibor

[ronpatel]

Hi

It's 69xx phone limitation. The display of toast message used by 
69xx phone would take almost entire screen to display the system message and 
then block all other existing display. It has been removed by design.

Regards

Ronak Patel

[tdudas]

Hi Patel,

Thanks for the information!

Is there any document available on CCO about this limitation so I could refer to this and show to my customer?

Regarding 9971 SIP phone: unfortunately I also have this sysstem message issue on SRST 8.5 / CUCM8.5 allthough I have 'system message' command under 'call-manager-fallback' on SSRS VGW...

Thanks in advance!

Kind regards,

Tibor

[ronpatel]

Hi,

This is true for 99XX phone also. It will not display the message.

Talks are going with developers to get is rectified in future. But no ETA for it.

I cant find any document for it in cisco.com.

Regards

Ronak patel

[tdudas]

Hi,

Thanks for your help!

Regards,

Tibor

[Tiago Pereira Barbosa]

Hi,

Is there a document available about this limitation on 6921 and 9951 ?

I need show this limitation to my customer.

Thanks