Solved Cannot make Outbound Calls

[DCB]

Hello All,
Bandwidth.com recently retired one of their old servers. On our office network we could not make outbound calls until we switched IPs to the new Bandwidth.com server, under SIP trunks. I have a customer that is having the same issue, cannot dial out. I updated their trunks as well, but no change.
They are getting a 500 internal server error.
Here's the logs (IPs and phone #s replaced with Xs)

07/07/2022 11:36:06 AM - Exception: ParseException ../../rutil/ParseBuffer.hxx:230, Parse failed unexpected eof in context: 402xxxxxxx ^ @ ../../rutil/ParseBuffer.hxx:230

07/07/2022 11:36:06 AM - Call to T:Line:10001>>402xxxxxxx@[Dev:sip:[email protected]] from L:6421.1[Extn:210] failed, cause: Cause: 500 Internal Server Error/INVITE from 67.231xxxx:5060

07/07/2022 11:36:06 AM - [CM503003]: Call(C:6421): Call to <sip:[email protected]:0> has failed; Cause: 500 Internal Server Error/INVITE from 67.231xxxx:5060

 

[ClsVip]

Looks like bandwidth is rejecting your calls

500 Internal Server Error/INVITE from 67.231xxxx:5060

The 67.231.x.x the address is bandwidth Ip address correct? Suggest contacting bandwidth and asking them why this is.

 

[DCB]

That's what I thought, and I do have an open ticket with them. Just wanted to get a 2nd pair of eyes on the issue, in case there was something I forgot to check. Thanks CIsVIP

 

[DCB]

Just to update this thread, bandwidth.com had to make a change to their ACL list, allowing the 3CX IP. Outbound calls are working.

 

[ClsVip]

That's good news. Thanks for the update. Glad to hear your issue was resolved.