Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
(OP)
PBX - Nortel Norstar CICS
Gateway - Grandstream HT818 Analog
Carrier - Rogers (Canada)
The carrier Rogers controls the Gateway, we have no access to it.
FYI for Canadian techs - They have started to do away with the traditional "Analog Modem with battery" direct to cable in favor of "Gateways" by Grandstream direct to Network switch.
The issue is a conference call is made via the Norstar system (in particular calling out from the mailbox using option 7), when both parties hang up the 2 lines/channels are still tied up.
The wiring needs to be disconnected briefly (I installed a BIX36B) or either the PBX or modem needs a reboot to free up the lines.
Single calls do disconnect and why I am puzzled.
Nortel Norstar CICS - I have confirmed "Disconnect Supervision" is programmed for all lines.
They carries support usually have no idea what ""Disconnect Supervision" means, but even more so now that it is now SIP and not POT's.
Has anyone had this same issue with Grandstream gateways? aside from "Disconnect Supervision" what should we be looking at on the Grandstream that I could convey to Rogers?
Any trickery?
Thanks

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www.curlycord.com
Toronto, Canada
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Gateway - Grandstream HT818 Analog
Carrier - Rogers (Canada)
The carrier Rogers controls the Gateway, we have no access to it.
FYI for Canadian techs - They have started to do away with the traditional "Analog Modem with battery" direct to cable in favor of "Gateways" by Grandstream direct to Network switch.
The issue is a conference call is made via the Norstar system (in particular calling out from the mailbox using option 7), when both parties hang up the 2 lines/channels are still tied up.
The wiring needs to be disconnected briefly (I installed a BIX36B) or either the PBX or modem needs a reboot to free up the lines.
Single calls do disconnect and why I am puzzled.
Nortel Norstar CICS - I have confirmed "Disconnect Supervision" is programmed for all lines.
They carries support usually have no idea what ""Disconnect Supervision" means, but even more so now that it is now SIP and not POT's.
Has anyone had this same issue with Grandstream gateways? aside from "Disconnect Supervision" what should we be looking at on the Grandstream that I could convey to Rogers?
Any trickery?
Thanks

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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
"If phone A hangs up, the conference will be terminated for all three parties when configuration “Transfer on Conference Hang up” is set to “No”. If the configuration is set to “Yes”, A will transfer B to C so that B and C can continue the conversation."
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
A strange feature to have though.
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
LoPath
Maintain HiPath 4000 V5 & V6, OpenScape Xpert V4 & V6, OpenScape Xpressions V7, OpenScape Contact Center V8, OpenScape Voice V9
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
Setting it up with one of my test SIP accounts will be a tool to troubleshoot sites to help eliminate carrier, network or PBX.
Under Profiles they have exactly what I am after:
Loop Current Disconnect: No (loop current disconnect upon call termination)
and
Loop Current Disconnect Duration: 200 (100 - 10000 milliseconds. Default 200 milliseconds)
Changing those to Yes and 600 might do the trick, Rogers the carrier needs to do change these since they do not give out login credentials.
Will update later on that.
Thanks for replies.
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
Transfer on Conference Hang up” is set to “Yes”
Loop Current Disconnect: Yes (loop current disconnect upon call termination)
Loop Current Disconnect Duration: 460 (Nortel Norstar default)
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
In a search I found someone who had the identical problem with a now discontinued Grandstream model (GXW-4008SIP), but the system was an Avaya IP Office 500, and the solution was to enable a particular feature setting ("Drop External Only Impromptu Conference") on the IPO that I believe has no CICS equivalent.
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
FYI, the two posts next to the last one in the thread discuss the solution.
https://forums.grandstream.com/t/ht814-disconnect-...
Not trying to send you on a wild goose chase, and apologies if this isn't helpful.
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
The Norstar guide states both end must match in timing but who knows.
So far we tried 460 and 260.
Cheers
cc
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
Yes there is a reason...
My original call was to add a couple more lines along with a 2nd line card and setup up external transfer from
I noted that programming the Supervision on the new lines 5-8 would not take.
It looks like it takes but when you go bacl to have a look it is back to "No" instead of "Yes".
The fix for that was to copy a working line such as 1, 2, 3 or 4 to the new lines, and it took!
So my feeling is that the above issue is a little more deeper in that Supervision struggles with conference calls but it appears ok with normal single call disconnects.
"I purchased the HT818 as a lab rat and a tool."
Yesterday I finally managed to get it to register with voip.ms.
I will bring that along and see if it works, or not.
ETA to site next week sometime.
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
However my new handy dandy HT818 test/loaner gateway registered with Voip.MS worked!
Next step is to meet with Rogers at site and compare configs.
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway
So in the end:
-with Rogers it works on a BCM50
-it works on the CICS with with another carrier such as Voip.MS
Strange!
Case closed
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www.curlycord.com
Toronto, Canada
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RE: Conference call - 2 lines not disconnecting on hang up - SIP Grandstream Gateway