Hookflash from FXS-Gateway (Cisco2851-EVM/8FXS)

[phaunschmied]

We are using a H323 Gateway (Cisco2851+EVM/8FXS-DID), that is registered to the Callmanager-(Version 3.3.3).

But it doesn´t working, to make a hook-flash on an analog telephone (connected to the FXS-Port of the EVM-Module), to begin a call-transfer-procedur, how it is possible on an ATA-Port.

I have configured the "dial-peer voip" with "dtmf-relay h245-signal". Maybe someone can help me.

Thanks

[Maulik Shah]

Not sure what you mean by does not work - hookflash support for H323 gateway FXS ports is ONLY for hookflash relay - meaning FXS port will detect a hookflash in and relay this out to an FXO port that goes to the PSTN. So the H323 FXS port can only od hookflash relay - not hookflash support where you can do a transfer.

http://www.cisco.com/en/US/tech/tk652/tk701/technologies_configuration_example09186a008009431b.shtml

[Maulik Shah]

meant to add - call mgr cannot detect a hookflash coming from H323 controlled FXS port.

[phaunschmied]

Thank you for the information-so i know, that it isn´t possible for the CCM to dedect a hookflash from a H323-FXS-Port. The h323-protocol probaly is to simple, to support this, how it works on the SCCP-controlled ATA´s. The last question: Do you know, if it´s working, when the Cisco2851-EVM-gateway is MGCP-controlled?

Thank´s and greetings from Austria

[Maulik Shah]

http://www.cisco.com/en/US/tech/tk652/tk701/technologies_configuration_example09186a00801f3b42.shtml

check the above link