Page Comparison

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Some useful information about specific VoIP carriers to consider when troubleshooting

Bandwidth.com

Effective 9/11/2008 - Fonality no longer supports Bandwidth.com !!!

Bandwidth provides SIP over T1 access. Often times, customers will request a T1 turn-up with Bandwidth.com, but make sure that it isn't a data & SIP solution.

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If you are having DTMF issues with http:// Bandwidth.com customers, try setting server and fromdomain to 4.79.212.236. It appears their 216.82.224.202 trunk may be using rfc2833 compliancy with Asterisk 1.4. *UPDATE. http:// Bandwidth.com is decommissioning this server in December 2007.

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Technical Details:
On some percentage of the inbound calls we are sending you two SIP 
INVITE messages within 0.02 seconds of each other.  This confuses your 
Asterisk system.  Your Asterisk system never properly sets up the call 
(the SIP trace is included below).  The issue we are tracking down is 
why we are sending you two INVITE messages so close together.  Below, 
you'll see the two inbound INVITE messages, and then you'll see your 
system never fully ACK'ing the call.  This is not at all an indictment 
of Asterisk - we should not be sending the duplicate INVITEs.  This is 
in no way a Fonality bug and they can close the ticket on their side.
--Mike

Teliax

Click Teliax for details page.

Broadvoice

Click Broadvoice for details page.

Vonage

Vonage service does not work well with PBXtra. There are very few instances where a customer has made it work, and they were only able to do so by getting to know high-level officials at Vonage personally. Reccommend Recommend that customers do not use Vonage with their PBXtra.

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Babytel cannot register under the hostname sip.babytel.ca, currently this resovles resolves to 216.18.125.3. The address of 216.18.125.7 is the current proxy server or another IP will be provided by Babytel. Usually, Babytel will request the end user updates their /etc/hosts file to map the hostname to the IP addres. THIS IS NOT NECESSARY AND SHOULD NOT BE DONE UNDER ANY CIRCUMSTANCES. Instead, use the web interface Options->voip page and input the IP address in lieu of the hostname. Babytel currently also registers on port 5065, not 5060, this can be changed in the web control panel as well. In the register string input the informaiton information in the following format:

username:password@ip.add.res.s:PORT/username

where "PORT" is 5065.

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