we are doing sip trunk with cube and ms teams . but when making outgoing call call receive and establishes. but after 4 seconds calls disconnects automatically.
There are two firewalls in between cube and ms teams. required ports are open.
000347: 17:15:00: ISDN Se0/1/0:15 Q931: Applying typeplan for sw-type 0x12 is 0x0 0x1, Calling num 036444020
000348: 17:15:00: ISDN Se0/1/0:15 Q931: Sending SETUP callref = 0x0087 callID = 0x8008 switch = primary-net5 interface = User
000349: 17:15:00: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x0087
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA9839F
Exclusive, Channel 31
Calling Party Number i = 0x0180, '036444020'
Plan:ISDN, Type:Unknown
Called Party Number i = 0x81, '0605479777'
Plan:ISDN, Type:Unknown
000350: 17:15:00: ISDN Se0/1/0:15 Q931: RX <- SETUP_ACK pd = 8 callref = 0x8087
Channel ID i = 0xA9839F
Exclusive, Channel 31
000351: 17:15:03: ISDN Se0/1/0:15 Q931: RX <- CALL_PROC pd = 8 callref = 0x8087
000352: 17:15:04: ISDN Se0/1/0:15 Q931: RX <- PROGRESS pd = 8 callref = 0x8087
Progress Ind i = 0x8188 - In-band info or appropriate now available
000353: 17:15:08: ISDN Se0/1/0:15 Q931: RX <- CONNECT pd = 8 callref = 0x8087
000354: Mar 14 11:40:45.665: %ISDN-6-CONNECT: Interface Serial0/1/0:30 is now connected to 0605479777 N/A
000355: 17:15:08: ISDN Se0/1/0:15 Q931: TX -> CONNECT_ACK pd = 8 callref = 0x0087
000356: Mar 14 11:40:49.563: %ISDN-6-DISCONNECT: Interface Serial0/1/0:30 disconnected from 0605479777 , call lasted 3 seconds
000357: 17:15:12: ISDN Se0/1/0:15 Q931: TX -> DISCONNECT pd = 8 callref = 0x0087
Cause i = 0x80CF - Service/option not implemented, unspecified
000358: 17:15:12: ISDN Se0/1/0:15 Q931: RX <- RELEASE pd = 8 callref = 0x8087
000359: 17:15:12: ISDN Se0/1/0:15 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x0087
