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ATA 187 and FAX



I have problems with my ATA box 187.

it is plugged into my version of CUCM

I declared a new device (Cisco ATA187) which I connected an analog phone. Until then, no problem. I can emit and receive calls from inside and outside.

I now wish to fax in place of my analog phone and there problem: nothing works, I see the start of communication between two fax but no data.

I tried Fax passtrought and T.38 Fax passtrought

here is a

term mon  / debug isdn q931 show :

May 28 09:11:52.005: ISDN Se0/1/1:15 Q931: TX -> SETUP pd = 8  callref = 0x00CD

        Sending Complete

        Bearer Capability i = 0x8090A3

                Standard = CCITT

                Transfer Capability = Speech

                Transfer Mode = Circuit

                Transfer Rate = 64 kbit/s

        Channel ID i = 0xA9839E

                Exclusive, Channel 30

        Calling Party Number i = 0x0081, '491563695'

                Plan:Unknown, Type:Unknown

        Called Party Number i = 0x80, '0491562008'

                Plan:Unknown, Type:Unknown

May 28 09:11:52.109: ISDN Se0/1/1:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x80CD

        Channel ID i = 0xA9839E

                Exclusive, Channel 30

May 28 09:11:53.013: ISDN Se0/1/1:15 Q931: RX <- PROGRESS pd = 8  callref = 0x80CD

        Cause i = 0x87F2 - Unknown cause value

        Progress Ind i = 0x8281 - Call not end-to-end ISDN, may have in-band info

May 28 09:11:53.013: ISDN Se0/1/1:15 Q931: RX <- ALERTING pd = 8  callref = 0x80CD

May 28 09:12:15.459: ISDN Se0/1/1:15 Q931: RX <- CONNECT pd = 8  callref = 0x80CD

May 28 09:12:15.463: ISDN Se0/1/1:15 Q931: TX -> CONNECT_ACK pd = 8  callref = 0x00CD

May 28 09:12:52.875: ISDN Se0/1/1:15 Q931: TX -> DISCONNECT pd = 8  callref = 0x00CD

        Cause i = 0x8090 - Normal call clearing

May 28 09:12:53.159: ISDN Se0/1/1:15 Q931: RX <- RELEASE pd = 8  callref = 0x80CD

May 28 09:12:53.179: ISDN Se0/1/1:15 Q931: TX -> RELEASE_COMP pd = 8  callref = 0x00CD

what other actions should I take?


1 Reply 1


i add my CUCM conf


ccm-manager fallback-mgcp

ccm-manager redundant-host 192.168.xxxx

ccm-manager mgcp

no ccm-manager fax protocol cisco

ccm-manager music-on-hold

ccm-manager config server 192.168.xxxx 192.168.xxxx

ccm-manager config



mgcp call-agent 192.168.xxxx 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 modem passthrough voip codec g711alaw

no mgcp package-capability res-package

no mgcp timer receive-rtcp

mgcp fax rate 14400

mgcp fax t38 ecm

mgcp fax t38 inhibit

mgcp bind control source-interface GigabitEthernet0/0

mgcp bind media source-interface GigabitEthernet0/0


mgcp profile default


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