Author Topic: SIP Trunk Hookflash on Mitel 3300  (Read 3713 times)

Offline ralph

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SIP Trunk Hookflash on Mitel 3300
« on: August 06, 2013, 01:50:32 PM »
To the SIP gurus, I have an app server that is connected to a 3300 via SIP trunks.
Currently to transfer a call to another device it uses a second SIP trunk to send the call back to the PBX tying up SIP trunks to our app server for the duration of the call.

My question is this:  Can the 3300 recognize a hookflash/transfer.   
Hookflash my not be the correct term for SIP but that is how I would do it on an analog line for instance.

Ralph


Offline sarond

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Re: SIP Trunk Hookflash on Mitel 3300
« Reply #1 on: August 07, 2013, 06:43:53 AM »
Should be able to do it.

We have a 3300 interfacing a IVR via SIP trunks, when it transfers the caller back to the 3300 the SIP Trunk is released (so it is a blind transfer)
I'm not sure how it works on the IVR side of things I just know it does.

Bit of googling found this, it may be relevant.

http://tools.ietf.org/html/rfc5589


Offline LoopyLou

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Re: SIP Trunk Hookflash on Mitel 3300
« Reply #2 on: August 07, 2013, 07:53:14 AM »
Not a SIP Guru but is there not redirect messages within SIP to send calls to another location? Anyway know the ESNA voicemail now uses SIP intergration to a 3300 and would expect it does a "hookswitch" when transferring calls from its Auto Attendant.

Offline ralph

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Re: SIP Trunk Hookflash on Mitel 3300
« Reply #3 on: August 07, 2013, 08:34:42 AM »
LoopyLou,
It's been a while but I know that when ESNA switched to SIP trunks they used to transfer an incoming call to a second trunk.
I'll reach out to someone I know to see if that's still the case.

Ralph

Offline LoopyLou

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Re: SIP Trunk Hookflash on Mitel 3300
« Reply #4 on: August 08, 2013, 07:40:06 AM »
Never really checked myself as we no longer use the ESNA. Would be interesting to know.


 

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