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Cisco Voice Gateway - Call disconnect timeout

When outbound call is passed through E1 port, and call is disconnected end users hear busy tone for about 30 seconds, also if call is initiated with sip trunk, SIP bey message is sent from Cisco GW after 30 seconds. ISDN disconnect cause is received almos immidiately after call is disconnected:

*Jun 11 05:15:34.356: ISDN Se0/1/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x0, Calling num 322541818

*Jun 11 05:15:34.360: ISDN Se0/1/0:15 Q931: Sending SETUP  callref = 0x027A callID = 0x81FB switch = primary-net5 interface = User

*Jun 11 05:15:34.360: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8  callref = 0x027A

    Bearer Capability i = 0x8090A3

        Standard = CCITT

        Transfer Capability = Speech 

        Transfer Mode = Circuit

        Transfer Rate = 64 kbit/s

    Channel ID i = 0xA98382

        Exclusive, Channel 2

    Calling Party Number i = 0x0081, 'XXXX'

        Plan:Unknown, Type:Unknown

    Called Party Number i = 0x80, 'XXXXX'

        Plan:Unknown, Type:Unknown

*Jun 11 05:15:34.420: ISDN Se0/1/0:15 Q931: RX <- CALL_PROC pd = 8  callref = 0x827A

    Channel ID i = 0xA98382

        Exclusive, Channel 2

*Jun 11 05:15:39.692: ISDN Se0/1/0:15 Q931: RX <- ALERTING pd = 8  callref = 0x827A

    Progress Ind i = 0x8488 - In-band info or appropriate now available

*Jun 11 05:15:43.236: ISDN Se0/1/0:15 Q931: RX <- PROGRESS pd = 8  callref = 0x827A

    Cause i = 0x80D7 - Unknown cause value

    Progress Ind i = 0x8088 - In-band info or appropriate now available

How can I adjust this parameter? This is my voice-port configuration:

voice-port 0/1/0:15

echo-cancel erl worst-case 0

echo-cancel mode 2

timeouts call-disconnect 2

timeouts wait-release 2

1 Reply 1

I guess this is T305 timeout, but cant find where can I change this on CME.

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