SIP Trunk is in No Service

[selva kumar]

After changing the CUCM Subscriber IP Address. SME to CUCM Leaf cluster SIP trunk is in no service.

We have configured the destination IP for both CUCM publisher and Subscriber IP in the Trunk.  We have not made any changes for Publisher.

both the CUCM IP is reachable from SME.

Status reason is showing us "remote=503" and Status is "down."

Service Status "No Service"

What would be the reason for this issue.

please help me to resolve the issue.

Selva

[Suresh Hudda]

Is IP address changed successfully on cucm sub, Are you able to browse cucm sub without any error & is dbreplication okay for cucm cluster after changing IP address ?

Suresh

[selva kumar]

Hi Suresh,

I am able to browse CUCM Sub without error and also the Db replication also ok.

Selva 

[Suresh Hudda]

Then it can be network issue..Is there any firewall between cucm and sme, verify access list or any network restrictions.

Suresh