How can I connect Cisco 6921 to third UC system by using SIP protocol

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06-11-2018 03:39 AM - edited 03-18-2019 12:26 PM
Dear Sir/Madam,
Recently I convet my cisco 6921 to sip firmware and want to connect to another vendor SIP UC system , I create a xml config file( please see attach) , and established a tftp server., and upload config xml file to tftp
I **#** on 6921, and I can see tftp server send config file to cisco 6921.
But I can't connect third vendor UC system ,I config sip user name and password on third sip UC system.
I can see log file on cisco 6921, and 6921 config correct ip address of third UC system . But 6921 can't get tone from handset.
please attach log file of 6921
thank you
Tom
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06-11-2018 05:00 AM
Looking at your log, seems like an issue with TFTP, check option 150 and domain name.

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06-11-2018 10:04 PM
Hi, thank you!
I just connect 6921 sip to cucm,and create a SEPXXXXXXXXXXX.cnf.xml,sgn
I download this xml config file from cucm and reconfig it according third party SIP server.
and I upload to new tftp server. **#**.
Finally ,I made it, cisco 6921can register to third party SIP Server.
amazing , I can make phone call to this 6921. I made it.
but I have a small problem, after I pickup handset of 6921, and press one button it immediately dial out. 6921 didn't wait I press another number , I can only put handset one the 6921, and press all number ,and pick handset , I can dialout full telephone number by this way
I think there is some config in xml file to affect this , but i haven't find it.
thank you!
I made it.
Tom

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06-14-2018 05:33 PM
Hi, Dennis,
I got it work, I dowload SEPxxxxxxxxxxxxxx.xml file from cucm ,and reconfig it with third SIP system, upload new tftp server, init phone 6921, this time 6921 can register to third SIP system.
and I can call 6921 from another phone. but i found a problem
when i dial first number of remote phone for example remote phone number is 6789, when I press number 6 button, phone 6921 don't wait me to finish dial second number, 6921 immediately dial 6 out.
is this third SIP system problem?
thank you
Tom
