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MGCP Modem Passthrough Problem

The configuration I have is a GW with an E1 in ISDN PRI-EURO connected to the RAS Server and another E1 in ISDN PRI-EURO connected to the public PSTN.

No errors or slips are detected.

I?ve been testing it, with h323 i have everything working with modem passthrough working on dial-peers an voip-services, but with mgcp some modems never negotiate with the RAS server, don?t know why??

I used this commands on the mgcp configuration:

mgcp modem passthrough voip mode nse

mgcp modem passthrough voip codec g711alaw

Thanks and regards

2 REPLIES

Re: MGCP Modem Passthrough Problem

Try disabling Fax relay and T38 using following commands...

mgcp fax t38 inhibit

no ccm-manager fax protocol cisco

New Member

Re: MGCP Modem Passthrough Problem

Thanks,i tried this commands, but no luck with this

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