07-16-2008 09:24 AM - edited 03-15-2019 12:00 PM
I have setup a sip trunk between my call manager and cme. I can call any phone from CUCM to the CME. When I try to place a call from CME to CUCM I am getting a fast busy. Here is by SIP Trunk on the CME side
dial-peer voice 1003 voip
destination-pattern 393
session protocol sipv2
session target ipv4:x.x.x.x
session transport tcp
dtmf-relay rtp-nte
codec g711ulaw
no vad
transfer-system full-consult
transfer-pattern .T
transfer-pattern 8...
transfer-pattern 128..
transfer-pattern 168..
I currently have the destination setup to try and call 1 specific phone for troubleshooting. On my CUCM side I have CSS set, Destination Address, MTP Preferred Origination Codec 711ulaw. Any ideas?
Solved! Go to Solution.
07-17-2008 01:50 AM
Just noticed you have "session transport tcp". Please remove that to leave the default of UDP.
07-16-2008 09:30 AM
Please check the following:
1. MRGL that yout sip trunk is assigned has a software MTP in it
2. The CSS on the inbound calls on your sip trunk has the partiton of your ip phones in it
07-16-2008 09:40 AM
I have confirmed that the SIP trunk:
MRGL has a software MTP in it
CSS for inbound calls is in the partition of my phones.
07-16-2008 12:46 PM
Hi, "393" doesn't seem right as destination-pattern. Suppose CM extensions all start with 3 and are four digits, "3..." would be right.
In any case, take "debug ccsip message" with "term mon" when calling. That will show numbers and causes.
07-16-2008 04:23 PM
All the ext on the CUCM side are 3 digits. I have the destination-pattern set for 393 because I was testing with 1 extention for troubleshooting.
07-17-2008 01:08 AM
Then collect the debug trace as mentioned above.
07-17-2008 01:50 AM
Just noticed you have "session transport tcp". Please remove that to leave the default of UDP.
07-17-2008 05:13 AM
That worked thanks!
07-17-2008 05:24 AM
Thanks for the appreciation and good luck!
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