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Joined: Mar 2008
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Amilod Offline OP
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Hi peeps.

I have a small problem I wonder if anyone can help.

I have a DCS 816 with 3 analogue lines.

My problem is I am trying to setup call forward to a mobile.
Which I have done using fwd5 key and night service mode key.
Fwd5 is set to my mobile and night service is set to dial my ext 206 only.

Now my problem is it works the first time then not the second time when I try a few seconds later.

When I dial the trunks 701, 702, 703. 702 is clear, 701 and 703 are busy and do not release until the co – co line disconnect times out.

I have reduced the co – co line disconnect time to 5 mins but obviously after 5 mins the call fwd disconnects the fwd5 to mobile call.

When the co – co disconnect timer expires then the system will fwd5 another call.

I am wondering if there is a problem with the system not disconnecting the line after the fwd5 parties call is finished.

Any help would be appreciated.

John.

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It sounds like you are not getting the proper disconnect supervision from your telco provider.

Here's a simple test... call into your office and after the call is answered, hang up the phone you initiated the call from. Now watch the line on the keyset. If it doesn't go out quickly... telco is not sending the proper signal to tell the phone system the caller has disconnected. Here in the US it's called CO Disconnect... but I'm not if it's the same thing on your side of the pond.

I'll see if one of the Mods in the Telephone Services section can provide some better information.

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While he is getting alternate help. Check that your "TRK MONITOR" is on or off and the same for "CHK SPV TRK".

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Quote
Originally posted by CIT:
It sounds like you are not getting the proper disconnect supervision from your telco provider.
I'm going to agree with Marc on this one... It sounds to me your Telco does not have your trunks provisioned correctly with what you’re trying to do. You’ll need to find out from your provider the equipment is capable of and/or optioned for “forward disconnect.”


-----------------------
Bryan
LEC Provisioning Engineer
Cars -n- Guitars Racin' (retired racer Oct.'07)
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Presumably you are using standard BT analog lines ?

If so, these do provide a end-of-call signal but it is fairly short - between 90 and 130 mSec as detailed in SIN351 section 7 <https://www.sinet.bt.com/351v4p5.pdf>

I believe you can ask BT to increase this, but trying to navigate their customer support to someone who knows about this can be difficult, so in the past I've reduced the CO SUPV TIME in TRUNK-WIDE TIMERS as the default is 400 mSec so the 816 fails to see the signal.


Moderated by  nameless, pvj 

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