ATA 186 using SRST fails

Unanswered Question
Oct 30th, 2009


We have a MGCP controlled GW with call-manager-fallback for SRST, but when we disconnect the WAN the ATA do not fall back into SRST mode.

Config for MGCP and fall back -

ccm-manager redundant-host

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager config server

ccm-manager config



mgcp call-agent 2427 service-type mgcp version 0.1

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 timer receive-rtcp

mgcp sdp simple

mgcp rtp payload-type g726r16 static


mgcp profile default


max-conferences 6 gain -6

transfer-system full-consult

limit-dn 7910 1

limit-dn 7935 1

limit-dn 7940 1

limit-dn 7960 2

limit-dn 7970 1

timeouts interdigit 6

ip source-address port 2000

max-ephones 30

max-dn 30

system message primary Operating at Reduced Service

system message secondary Reduced Service

transfer-pattern .T

keepalive 10

voicemail 01875618191

no huntstop


time-format 24

date-format dd-mm-yy

Any one any pointers to get the ATA registered when in fall back mode.



I have this problem too.
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