Unable to call to CME from CUCM our the WAN

[Muhammad Talha]

We have created the SIP Trunk in CUCM and configure below dial-peer in CME but unable to dial CME extension From CUCM while the vice versa is working can any one help??

dial-peer voice 500 voip

Outgoing CME to CUCM

 destination-pattern ....

 session protocol sipv2

 session target ipv4:172.31.8.13

 voice-class codec 1  

 dtmf-relay h245-signal h245-alphanumeric

dial-peer voice 5001 voip

Incoming From CUCM to CME

 session protocol sipv2

 session target sip-server

 incoming called-number .

 dtmf-relay sip-notify

[devils_advocate]

You don't need the session target in DP 5001 as its an inbound dial peer being matched on the incoming called number.

Are the calls hitting the CUBE?

Try the following debugs when you make a call.

debug ccsip packets
debug ccsip events
debug ccslip calls

[Muhammad Talha]

Hi,

When we call from CUCM ext to CME ext its give error call cannot be considered as dial and no logs shown at CME side

[Chris Deren]

Do you have proper route pattern in allowed partition pointing to proper RL/RG/Trunk?

What does Dialed Number analyzer show?

[Muhammad Talha]

Hi,

Please find attached DNA reports

[Chris Deren · Accepted solution]

As you can see the call is not routable 

BlockThisPattern

Make sure your routing is configured properly in CUCM:

1. Create SIP trunk pointing to CME
2. Create Route Group pointing to the SIP trunk
3. Create Route List pointing to the RG
4. Create route pattern that matches your DNs on CME, assign it to partition that is available in the CSS of the phone you are calling from.

[Muhammad Talha]

Hi,

Thanks all for there valuable inputs its working now.

[Chris Deren]

Please post "debug ccsip messages" for the failed call. Assign voice codec-class to dial peer 5001 and correct dumf-relay on dial peer 500 (this is not causing the issue). Posting full configuration would be helpful too, to ensure you allow sip-sip calls, and toll-fraud prevention is properly configured.

[Muhammad Talha]

Hi,

When we call from CUCM ext to CME ext its give error call cannot be considered as dial and no logs shown at CME side..Configuration attached