Call Manager Express SIP issue

kornev.yuriy — Sun, 17 Mar 2019 10:17:34 GMT

Good day! We have a UC500 series router with CME.

Also we have a plenty PBX and CUCM cluster in our environment

We use both SCCP and SIP IP phones, but SIP phones are 3d-party phones.

I have registered 2 SIP 3d-party phones

When I place call from outside, for example from one of PBX, the call sucessful,

but if I try to call from one 3d-party SIP-phone to another, I have an error 404 NOT FOUND.

Local calls from SIP to SCCP phones are sucessful too.

Here is a simple scheme:

[0388] +---------SIPphone1[1051]

PBX ----------CME--------SIPphone2[1052]

+---------SCCPphone[1006]

Voice part of router config - in attached file

Add following commands under

Vivek Batra — Thu, 11 Jun 2015 04:21:15 GMT

Add following commands under voice service voip and let us know if it works for you;

no ip address trusted authenticate

allow-connections sip to sip