how to register Huwaei ip phones with CUCM 10.5 and SIP SRST configuration steps on 2921 Voice Gateway

[awadmohammad5]

Hi Experts,

at our new branch office we are going to use Huwawei ip phones to register with our CUCM 10.5 which is located at our HQ office 

and we want to use SRST on 2921 router at the BR site so that when the connectivity with CUCM lost it should register with the voice gateway.

we have 25 seats SRST and CUCME license on our BR router 2921 which we are going to configure as SRST.

could you please let know the Configuration steps for this requirement.

Thank you very much for your  excellent support as always.

Regards

Awad

[Dennis Mink]

you would need to add all your phones to CUCM as "3rd party SIP devices"

Please rate if useful

[awadmohammad5]

thank you for your reply

please give me the configuration reference 

can you help me out with SIP SRST configuration ?

[Siva chinap]

Dear Awad,

The below commands can helpful for you to configure SIP SRST.

Voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
no supplementary-service sip moved-temporarily
no supplementary-service sip refer
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
sip
bind control source-interface GigabitEthernet0/1
bind media source-interface GigabitEthernet0/1
registrar server expires max 600 min 60

!
voice iec syslog
voice register global
mode esrst
source-address 172.19.6.3 port 5060
system message "SRST-LOCALMODE"
max-dn 200
max-pool 42
!
voice register pool 1
id network 172.19.6.0 mask 255.255.255.0
no digit collect kpml
dtmf-relay sip-kpml
codec g711ulaw
no vad

[Jaime Valencia]

Do notice that 3rd party SIP phones will offer limited functionality compared to Cisco endpoints, and are not officially supported on SRST, they *might* work, but will not have Cisco support.

The 10.0 CUCM admin guide has a chapter that covers non-cisco phones setup, that's what you need to review.