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SRST for H323 gateway

Hi we have CUCM 8.6 cluster and branch router 2811 and branch phones registered with call manager at head office.

branch router using analog lines to PSTN. i want to configure srst for the branch.

we have 6921 and 8941 model phones, where 6921 are using SCCP and 8941 using SIP.

i am not able to check SRST version on gateway.

i configured call-manager-fallback option, but i am not able to see the standby option on the phones

call-manager-fallback
 max-conferences 8 gain -6
 transfer-system full-consult
 timeouts interdigit 5
 ip source-address 192.168.21.5 port 2000
 max-ephones 40
 max-dn 40
 system message primary SRST Mode active
 system message secondary SRST Mode Active
 default-destination 2022
 time-zone 31
 date-format dd-mm-yy

dial-peer voice 1230 voip
 description "SRST-PSTN"
 preference 5
 destination-pattern 2...
 voice-class codec 1
 voice-class h323 1
 session target ipv4:192.168.21.5
 incoming called-number .
 dtmf-relay h245-alphanumeric
 no vad

 

SRST config

 

please can anyone guide me

 

3 Replies 3

Shadi Shami
Level 7
Level 7

Hello,

 

if the srst reference ip address not showing up, this means either the configuration files are not updated or phones are not loaded the files. Can you try restarting the tftp service, then get the configuration file as below:

- Open CMD

- tftp x.x.x.x get SEP(MAC_Address).cnf.xml

 

Thank you,

Shadi

j.huizinga
Level 6
Level 6

Might have to check SRST version, think it needs CME 8 or higher

Wilson Samuel
Level 7
Level 7

Just SCCP Phones or Both phones?

Regards

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