Internal call being sent to Voicemail after one ring...

[Erik Nathe]

Having an odd issue... When one specific user calls one of two other users, it rings once and then routes to voicemail. But if she calls any other user it works just fine... issue only occurs when she calls two specific users. I get the below notification after she tries to call one of them. If she calls the other then I get a nearly identical notification but the error is "500 Service Unavailable". This ALL goes away as soon as I turn of "Ring mobile simultaneously." But any other user she tries to call that does have that enabled it works fine...

 

[leejor]

And those extensions the ones being called,are able to call the mobile number directly, same format as set-up in the Ring my Mobile options?
Something similar (not involving the Ring my Mobile option), came up the other day...
https://www.3cx.com/community/threads/ext-a-cannot-call-ext-b-but-everyone-else-can.67174/

 

[VoIPster]

I'm having the same problem as of today. The user had not previously had this issue. When I call the phone (Cisco SPA303, others in the office work), it rings once or not at all and goes straight to VM, regardless of whether I call through the SIP trunk or from another internal extension.

 

[VoIPster]

Nevermind on my issue. Turned out the phone itself was still in DND, even though I had the user dial the DND off code (and heard it confirmed through another mobile phone on speaker). Found it in the phone's web page settings.

 

[Erik Nathe]

And those extensions the ones being called,are able to call the mobile number directly, same format as set-up in the Ring my Mobile options?
Something similar (not involving the Ring my Mobile option), came up the other day...
https://www.3cx.com/community/threads/ext-a-cannot-call-ext-b-but-everyone-else-can.67174/

Yes, can call the mobile number without issue!

I did actually check the blacklist already, that was the first thing I thought of. As well as checking the mobile phones blacklisted numbers.

 

[Erik Nathe]

Also just noticed, that if I call one of the problem phones full number then it dials just fine. BUT if I dial just the extension, that is when the issue occurs...

 

[AWS2P]

How many digits do you have in your extension numbers? Internal number start with ?
Could it be possible to have a system extension reacting to the calls instead of extensions?
Voicemail service is available on what number on your PBX ?

 

[leejor]

If you sunstitute another number (landline, or another extension, or a number using a different trunk), for the mobile number, does it work?