StevenOnCall Posted October 17, 2021 Report Share Posted October 17, 2021 Hello, I have a Cisco 8841 3PCC phone that I was able to upgrade and provision using the instructions here: https://blog.vodia.com/cisco_8800_provisioning The phone shows all of the configured buttons, but is unable to dial either extensions or outside lines. I am able to make calls from the same extension on the web interface. Any guidance is appreciated. Thanks! Steven, On Call Comms Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted October 17, 2021 Report Share Posted October 17, 2021 Can you call other extensions? Or the mailbox? Then the problem would be somewhere with the dial plan and the trunk. Quote Link to comment Share on other sites More sharing options...
StevenOnCall Posted October 18, 2021 Author Report Share Posted October 18, 2021 44 minutes ago, Vodia PBX said: Can you call other extensions? Or the mailbox? Then the problem would be somewhere with the dial plan and the trunk. No, I can not call other extensions or the voicemail. I have the dial plan set in the general settings to 3 digit extensions. Also, I am able to make and receive calls from the web app, so I know calls are working internally and externally on the system level. Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted October 18, 2021 Report Share Posted October 18, 2021 Well in that case as a first step I would turn the SIP logging on (possibly just filer by the IP address of the phone if possible) and see first of all if there are any packets and if yes, what the PBX response is. Maybe there is just a codec mismatch. But there should be some clue where the problem is. Quote Link to comment Share on other sites More sharing options...
StevenOnCall Posted October 18, 2021 Author Report Share Posted October 18, 2021 5 minutes ago, Vodia PBX said: Well in that case as a first step I would turn the SIP logging on (possibly just filer by the IP address of the phone if possible) and see first of all if there are any packets and if yes, what the PBX response is. Maybe there is just a codec mismatch. But there should be some clue where the problem is. Where do I turn on SIP logging? Quote Link to comment Share on other sites More sharing options...
StevenOnCall Posted October 18, 2021 Author Report Share Posted October 18, 2021 Nevermind. I found it. Quote Link to comment Share on other sites More sharing options...
StevenOnCall Posted October 18, 2021 Author Report Share Posted October 18, 2021 We can't find any SIP packets going to or from the phone, even though it is receiving provisioning from the system. The dial plan on the system and on the phone look good, but the phone can not make any calls still. Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted October 19, 2021 Report Share Posted October 19, 2021 Try to set the transport layer to TCP and reprovison the phone. Maybe you try TLS and the phone does not like the certificate of the PBX. You would see that actually in the log if you turn pin the log level for TLS, however its very noisy. Quote Link to comment Share on other sites More sharing options...
mskenderian Posted October 19, 2021 Report Share Posted October 19, 2021 Yes i have had this TLS issue with polycom phones. Quote Link to comment Share on other sites More sharing options...
StevenOnCall Posted October 28, 2021 Author Report Share Posted October 28, 2021 Setting the transport to UDP worked. Looks like the provisioning file that gets sent to the phone might need updating, but we were able to manually provision it Quote Link to comment Share on other sites More sharing options...
Vodia PBX Posted November 1, 2021 Report Share Posted November 1, 2021 If I remember correctly, the Cisco phones don't have a built-in list of trusted certificates. That explains why HTTPS and SIPS will not work out of the box. Quote Link to comment Share on other sites More sharing options...
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