VG224 Modem communication issue

Unanswered Question

Hi Guys,

I have a modem conected to a FXS of a VG224 (under mgcp config) where it (caller party) is dailing to other (same manufacturer)in the remote side trou WAN, the issue modems talking but when the caller try to send dtmf digit (log in or password in a system) the called modem seems like is not receiving or receiving bad, the vg224 has the following config


mgcp call-agent 2427 service-type mgcp version 0.1

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

no mgcp package-capability res-package

mgcp package-capability sst-package

no mgcp package-capability fxr-package

mgcp package-capability srtp-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp fax t38 inhibit

mgcp rtp payload-type g726r16 static

mgcp bind control source-interface Loopback1

mgcp bind media source-interface Loopback1

Please your suggestions



I have this problem too.
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smalkeric Sat, 11/15/2008 - 10:12

You may try modifying the following paramaters on VG and PSTN gateway: mgcp modem passthrough voip mode nse

mgcp modem passthrough voip codec g711alaw

mgcp fax t38 inhibit


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