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Modem over ATA 186 problem

Guys,

Currently unable to dial out to an external (non IPT platform) modem via our ATA 186.

We are currently running CUCM V 6.0 over an MGCP Gateway running IOS 12.4(16).

Modem is trying to negotiate but fails due to numerous connection errors - Modem has not answered at far end etc.

Any ideas.

Below is MGCP print.

mgcp dtmf-relay voip codec all mode out-of-band

mgcp rtp unreachable timeout 1000 action notify

mgcp modem passthrough voip mode nse

mgcp package-capability rtp-package

mgcp package-capability sst-package

mgcp package-capability pre-package

no mgcp package-capability res-package

no mgcp package-capability fxr-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp rtp payload-type g726r16 static

!

mgcp profile default

!

2 REPLIES

Re: Modem over ATA 186 problem

Modems are not supported on ATAs. That doesn't mean that they won't work, but they're not supported. You could try lowering the speed to 9600.

Brandon

Cisco Employee

Re: Modem over ATA 186 problem

Note: ATA 186 is not supported for analog modem calls. The modem referred to throughout the documentation implies fax modem.

This is from:

http://cisco.com/en/US/products/hw/gatecont/ps514/products_configuration_example09186a00800d698e.shtml

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