Need help with IAX2 on Asterisk using the voip.ms provider

[Bruce Dawson]

It turns out there's an undocumented (at least I could not find it) 
restriction on IAX accounts with voip.ms - you can have only one IAX 
account (i.e. DID) per IP address. (I found this out from voip.ms' 
technical support.) With SIP, you can have as many DIDs as you want. So 
I've converted two of my three IAX accounts to SIP. That got two 
account/DIDs working, but not the last one - but I think I have other 
problems with one that's not working.

I'm still working with voip.ms on the one DID that's not working.  Its 
sort-of an international number (US Virgin Islands) and I think there 
may be some tariff restrictions on it that no one knows about. But I 
could be wrong. It took many iterations with voip.ms support to find out 
about the IAX restriction.

I do like voip.ms's services, and they have a technical support staff 
that actually *tries* to answer the question. Its just frustrating until 
you find the right person.

--Bruce

On 3/3/22 09:39, Matt Minuti wrote:
> I set up an Asterisk server running on FreeBSD for a company probably 
> 8-10 years ago, using Vitelity (back when they offered services for 
> brick-and-mortar small businesses). I believe it used IAX2, and the 
> actual phones were bottom-of-the-line Grandstream DECT cordless units 
> that connected to the Asterisk box through SIP over SSL (probably with 
> a self-signed cert knowing me). That knowledge is probably out of date 
> now, unfortunately.
>
> For my office, I'm using voip.ms <http://voip.ms> and having the 
> phones directly connect to their servers via subaccounts. It's working 
> great - I only have one DID hooked up, but depending on what the 
> caller presses in the IVR (voice menu thing), it rings different 
> sub-accounts in groups. I expected it to be a holdover solution until 
> I had the time to set up a proper Asterisk install, but it's working 
> well enough that I'm likely to keep it. That said, I initially had a 
> lot of difficulty keeping the registration attached to the hardphones, 
> while the softphones never had issues. Although it makes absolutely no 
> sense, I want to say that there was a codec incompatibility, because 
> once I turned off one of the codecs (forget which) on a hardphone, 
> that hardphone has maintained registration forever.
>
> Have you checked the guides on the voip.ms <http://voip.ms> wiki? I 
> found them to be pretty helpful, particularly when I looked at the 
> guides for hardware I don't actually have, so that I could 
> cross-reference and get a sense as to what MUST be set versus what is 
> flexible.
>
> On Sun, Feb 20, 2022 at 6:47 PM Bruce Dawson <jbd at codemeta.com> wrote:
>
>     Anyone have any experience with Asterisk (the VOIP PBX software)?
>
>     How about using IAX2 for communicating with a DID provider?
>
>     How about with using the 'VOIP.ms' DID provider?
>
>     I just have a few phones and Zoiper apps here, but lately, every
>     time I
>     change the dialplan, I seem to lose the IAX connection to the
>     voip.ms <http://voip.ms>
>     servers. (Not lose the network connection, but the registration
>     and the
>     ability to receive calls on my DIDs (I have about 4).
>
>     I'm at the point where I might pay someone to help solve some of the
>     problems.
>
>     --Bruce
>
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