[VoiceOps] [External] Re: Mitel 3300 Issues

[Hunter Fuller]

Obihai has the same option, if this helps.

On Mon, Mar 14, 2022 at 16:38 Matthew Beckwell <mbeckwell at gmail.com> wrote:

> The HT8XX series ATA FXS Ports should have an option for “Enable High Ring
> Power” you could try enabling.
>
> ~Matthew
>
>
> On Mar 14, 2022, at 3:50 PM, Mike Hammett <voiceops at ics-il.net> wrote:
>
> A customer of mine has a Mitel 3300 PBX. We deliver to them analog lines.
>
>
> Everything worked fine for months, if not years. Then one day they say
> they can't receive inbound calls. They can still place outbound calls.
>
> They're on a Grandstream HT818 ATA. I move some lines to the Zhone ONT
> that's on-site. No improvement.
>
> I plug in a normal analog handset from Walmart or Menards. They all ring
> and answer just fine.
>
> I plugged in a patch cable from their Mitel ONS2 to the analog trunk 5 and
> they set up an extension on that ONS2 so that a call to it would trigger an
> inbound call on their analog line. Apparently that worked.
>
> The Mitel support agent is saying that we're not sending them between 24v
> - 48v.
>
> All cables are 6' at most.
>
> A) I don't see anywhere to configure voltage on either platform.
> B) I don't know how it could work and then just stop, other than equipment
> failure.
> C) I don't know how it would work just fine on a COTS phone, but not their
> Mitel.
> D) I don't know how the same problem could also afflict another ATA (build
> into the ONT).
>
>
> Any tips?
>
>
>
>
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
>
>
>
> Midwest Internet Exchange
> http://www.midwest-ix.com
>
>
>
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-- 

--
Hunter Fuller (they)
Router Jockey
VBH M-1A
+1 256 824 5331

Office of Information Technology
The University of Alabama in Huntsville
Network Engineering
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