[VoiceOps] ATA To Connect to Mitel PBX

Wed Jun 19 13:25:15 EDT 2019

 From what we are told, an incoming call, instead of ringing the front 
desk, rings directly to a guest room.  A very few number of calls appear 
to do this, and it's not always the same room.  We hear about this 
happening in the middle of the night, but of course that's when someone 
is in the room to hear it.  Without any time stamps of when this 
happens, I'm not able to answer the Trunk order question, and being 3 
times removed the from the information (Guest -> Front Desk -> Hotel 
Management -> Me) getting more specific detail is hard.  I always ring 
inbound lines starting with 1, but it appears that outbound calls from 
the MITEL round robin the trunk lines.  When I place test calls to/from 
the hotel when I'm on site, I can't replicate a trunk port staying open 
(by looking at the LED's on the front of the MITEL card), but that's the 
only explanation that makes sense so far.

I just added a ground wire between the adtran and the Mitel (they 
previously had a common electrical ground).  I'm hopeful that the MITEL 
Tech will respond to some of my inquiries for information.

Nate

On 6/19/2019 11:27 AM, Matthew Yaklin wrote:
>
> Nate,
>
>
> I have to admit never running into this problem before. Basically you 
> are saying an incoming call over a pots line is routed to a hotel 
> room. I assume via the front desk doing a
>
> transfer/AA? Or does it route directly.. hard coded.. every single 
> time to the hotel room?
>
>
> And once the hotel room hangs up... the very next call over that same 
> trunk (pots line/TN) just slips right through the open path previously 
> created and never hits the front desk/AA?
>
>
> Why do I get the feeling you are battling some odd setting in the 
> Mitel that was done years
>
> ago with ATT.. and now here you come with a normal modern setup and 
> running into
>
> problems.
>
>
> If you could just get the Mitel PBX vendor to give you the "CO trunk 
> circuit descriptors"
>
> information in a screen shot or whatever.. i bet we could solve this 
> pretty quick.
>
>
>
>
> *Matthew Yaklin*
> Network Engineer
> *FirstLight*
> 359 Corporate Drive │ Portsmouth, NH 03801
> Mobile 603-845-5031
> myaklin at firstlight.net | www.firstlight.net
> /This email may contain FirstLight confidential and/or privileged 
> information. If you are not the intended recipient, you are directed/
> /not to read, disclose or otherwise use this transmission and to 
> immediately delete same. Delivery of this message is not intended/
> /to waive any applicable privileges./
>
> ------------------------------------------------------------------------
> *From:* Nate Burke <nate at blastcomm.com>
> *Sent:* Wednesday, June 19, 2019 11:41:01 AM
> *To:* Matthew Yaklin; voiceops at voiceops.org
> *Subject:* Re: [VoiceOps] ATA To Connect to Mitel PBX
> Unfortunately the MITEL tech is being very little help.  Even the 
> customer says they are not-responsive.  So I have no way of knowing 
> what the MITEL settings are now, he has not responded to my requests. 
> Previously they were getting POTS handoff from an AT&T T-1 to POTS 
> unit, supposedly it worked fine.
>
> This is at a Hotel, so getting the exact scenario that happens is a 
> little difficult.  What we have been told is that randomly, an 
> incoming call will route directly to a guest room.  We can't even get 
> times when this happens to correlate call logs, as the guest just 
> complains to the front desk at checkout.  The only thing we can 
> figure, is that the MITEL is not closing a trunk line, and and if an 
> incoming call hits that same trunk, it just rings through to the last 
> extension connected to that trunk.
>
> Would there be any harm in turning the Forward Disconnect Delay up to 
> it's maximum value?  I think 2000ms.
>
> Nate
>
> On 6/19/2019 10:07 AM, Matthew Yaklin wrote:
>>
>> Nate,
>>
>>
>> I see that you have Forward Disconnect Delay set to 750 ms on the Adtran.
>>
>>
>> But has the mitel tech told you what is set on the PBX for forward 
>> disconnect delay?
>>
>> Is it possible some PBX tech in the past set an unusually high value 
>> for that?
>>
>>
>>
>> Also what are these certain call scenarios? Are you talking about an 
>> incoming call going to the PBX and the user is then doing something 
>> to have the call go back out to the world?
>>
>>
>> Or are we talking about a regular plain jane incoming call or 
>> outgoing call. In order to help we need to know if this is more 
>> complicated then it seems.
>>
>>
>> Matt
>>
>>
>>
>>
>> *Matthew Yaklin*
>> Network Engineer
>> *FirstLight*
>> 359 Corporate Drive │ Portsmouth, NH 03801
>> Mobile 603-845-5031
>> myaklin at firstlight.net <mailto:myaklin at firstlight.net> | 
>> www.firstlight.net <http://www.firstlight.net>
>> /This email may contain FirstLight confidential and/or privileged 
>> information. If you are not the intended recipient, you are directed/
>> /not to read, disclose or otherwise use this transmission and to 
>> immediately delete same. Delivery of this message is not intended/
>> /to waive any applicable privileges./
>>
>> ------------------------------------------------------------------------
>> *From:* VoiceOps <voiceops-bounces at voiceops.org> 
>> <mailto:voiceops-bounces at voiceops.org> on behalf of Nate Burke 
>> <nate at blastcomm.com> <mailto:nate at blastcomm.com>
>> *Sent:* Wednesday, June 19, 2019 10:44:50 AM
>> *To:* voiceops at voiceops.org <mailto:voiceops at voiceops.org>
>> *Subject:* Re: [VoiceOps] ATA To Connect to Mitel PBX
>> Thanks to everyone for the replies.  The MITEL Tech is being 0 help
>> other than continuing to tell the customer that my lines are the problem.
>>
>> The MITEL card that I'm  plugging into is a 'LS/GS Trunk (6cct)
>> 0109-011-001-SA'.  I'm guessing the settings that are the problem are the
>>
>> Forward Disconnect Delay
>> Forward Disconnect Battery
>>
>> Anybody know what these settings should be to in the TA908 to interface
>> to this MITEL card?
>>
>> Currently they are set to
>> Forward Disconnect Delay - Currently at 750ms
>> Forward Disconnect Battery -Currently on Remove.
>>
>> Thanks,
>> Nate
>>
>>
>> On 6/17/2019 9:07 PM, Todd Wolf wrote:
>> > This link is relevant to your issue
>> >
>> > https://supportforums.adtran.com/thread/2264 
>> <https://supportforums.adtran.com/thread/2264>
>> >
>> >
>> >> On Jun 17, 2019, at 9:36 PM, Nate Burke <nate at blastcomm.com> 
>> <mailto:nate at blastcomm.com> wrote:
>> >>
>> >> Sorry for Dredging up an old post.  I've had the Adtran TA908 (2nd 
>> gen) installed to the MITEL for about a month, but now I'm starting 
>> to hear about problems.  In Certain call scenarios, the MITEL is not 
>> disconnecting the Trunk port, even though a call has ended.  The 
>> Mitel consultant is placing the blame squarely with me, that I'm not 
>> sending the proper 'Disconnect Supervision' and the MITEL is not 
>> hanging up the line.
>> >>
>> >> I've been googling, and reading manuals, and haven't been able to 
>> find any sort of settings for a 'disconnect supervision'
>> >>
>> >> Anyone run into this before?
>> >>
>> >> Thanks,
>> >> Nate
>> >>
>> >>
>> >>> On 4/13/2019 7:23 AM, Nathan Anderson wrote:
>> >>> You didn't say what the "some issues" were that the customer was 
>> still complaining about. Just stuck lines?  Just echo?  Both?  
>> Something else entirely?
>> >>>
>> >>> Re: stuck lines, sounds to me like the TA and the phone system 
>> are not in agreement about what method of disconnect supervision (if 
>> any) the TA is going to provide and the phone system trunks are going 
>> to be looking for.
>> >>>
>> >>> -- Nathan
>> >>>
>> >>> -----Original Message-----
>> >>> From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf 
>> Of Nate Burke
>> >>> Sent: Friday, April 12, 2019 9:33 AM
>> >>> To: voiceops at voiceops.org <mailto:voiceops at voiceops.org>
>> >>> Subject: [VoiceOps] ATA To Connect to Mitel PBX
>> >>>
>> >>> I've only had to provide POTS termination to 1 MITEL system.  I tried
>> >>> using Linksys/Cisco SPA and Grandstream ATA's, then finally put in an
>> >>> Adtran TA904 (2nd gen).  The Adtran seemed to give the least 
>> number of
>> >>> issues with Lines getting stuck open, Echo, etc. But the (former)
>> >>> customer was still complaining about some issues when they closed 
>> up shop.
>> >>>
>> >>> I now need to provide 6 analog lines to hand off to an existing 
>> MITEL.
>> >>> Is there an ATA that's better than a TA908 for doing "Acceptable" 
>> POTS
>> >>> to a MITEL?
>> >>>
>> >>> Thanks,
>> >>> Nate
>> >> _______________________________________________
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