Really annoying intermittent problem dialing out.

More information:

I've been doing some troubleshooting, and it appears that some of the trouble comes with whether or not certain media gateways accept the G722u codec. When I attempt to call my mobile phone (only allowing g.722u), I get an error indicating that my requested CODEC was not accepted.

I *think* that this issue will resolve if Voipo will be willing to proxy the audio for my calls. OTOH, I do not know what new issues doing so will bring up (aside from more load on their system and possible latency in my calls). I've floated the suggestion to Support - we'll see what they have to say.

uhm, i can not recall experiencing such problems
perhaps, we do not use our phone that often? Or im just having good luck with my setup/service

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Originally Posted by KenH

Tim,

Thank you for your thoughts.

As you might imagine, short of changing ISP's, all options have been exhausted:

1. Three different ATA's
2. Two different routers using three different firmwares
3. All suggested ports are open
4. As a grandfathered BYOD user, I've tried different servers

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I'm sure you've thought of this, but could it be the telephone instrument itself? I sometimes suspect that my old Siemens two-line cordless system has caused problems.

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Originally Posted by voxabox

uhm, i can not recall experiencing such problems
perhaps, we do not use our phone that often? Or im just having good luck with my setup/service

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Not sure if you're talking to me or others indicating the trouble. In my case, it seems to be a small number of specific people I call. Unfortunately, one of them happens to be my mobile phone. I can call my daughter's phone (same carrier, different exchange), but not mine. The problem seems to go away (for me) if my ATA is directly connected to Voipo, but I've not had to operate that way in the past 2-3 years, and it's not the configuration I'd like to run...

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Originally Posted by fisamo

More information:

I've been doing some troubleshooting, and it appears that some of the trouble comes with whether or not certain media gateways accept the G722u codec. When I attempt to call my mobile phone (only allowing g.722u), I get an error indicating that my requested CODEC was not accepted.

I *think* that this issue will resolve if Voipo will be willing to proxy the audio for my calls. OTOH, I do not know what new issues doing so will bring up (aside from more load on their system and possible latency in my calls). I've floated the suggestion to Support - we'll see what they have to say.

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That could definitely be it. Some of our vendors only support G.711.

Oops--I meant G711u, not G722u. The problem I'm having is that at least one of the media gateways my calls connect to does not accept G.711u but seems to require G.729 instead. I configured my trunk (briefly) to use ONLY G.729, and calls to my mobile phone worked, but then calls to several other numbers failed (which was expected behavior). Allowing both CODECs seemed to cause a 'battle of the codecs' based on my Asterisk log, and although the call stayed connected, no audio was transmitted. (I included a snippet of my logs in my ticket.)

Is it possible that there are some 'rogue gateways' that are causing this intermittent problem for other users?

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Originally Posted by fisamo

Oops--I meant G711u, not G722u. The problem I'm having is that at least one of the media gateways my calls connect to does not accept G.711u but seems to require G.729 instead. I configured my trunk (briefly) to use ONLY G.729, and calls to my mobile phone worked, but then calls to several other numbers failed (which was expected behavior). Allowing both CODECs seemed to cause a 'battle of the codecs' based on my Asterisk log, and although the call stayed connected, no audio was transmitted. (I included a snippet of my logs in my ticket.)

Is it possible that there are some 'rogue gateways' that are causing this intermittent problem for other users?

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The only thing I could think of would be peering. All the primary trunks are def 711 enabled. Can you send me some numbers you've seen this message on so I can see how they are routing out? If already in ticket, a ticket number is fine.

The numbers are listed in this ticket: RHG-145807.

This issue has only started occurring within the last few weeks (at most) for me. There are a few call reference IDs in the ticket that should help you see what's going on, too.

Thanks for checking on this!

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Originally Posted by caseydoug

I'm sure you've thought of this, but could it be the telephone instrument itself? I sometimes suspect that my old Siemens two-line cordless system has caused problems.

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Thanks for the suggestion, but I have two separate systems connected and both exhibit the same symptoms. I will admit that a corded phone does have better audio quality than my two cordless systems.

I have tried several times to dial out an 866 number(HostGator). I get a dial tone, then after I dial the # I get complete silence. This seems to be a recurring issue.