I would like to ask about a real cause of disconnect voice connection based on the result which is bellow.
Log from Cisco router.
ISDN Se3/0:15: RX <- SETUP pd = 8 callref = 0x1A52
Sending Complete
Bearer Capability i = 0x8090A3
Channel ID i = 0xA18392
Progress Ind i = 0x8183 - Origination address is non-ISDN
Calling Party Number i = 0x01, 0x81, '11111, Plan:ISDN, Type:Unknown
Called Party Number i = 0x81, '22222222', Plan:ISDN, Type:Unknown
ISDN Se3/0:15: TX -> CALL_PROC pd = 8 callref = 0x9A52
Channel ID i = 0xA98392
ISDN Se3/0:15: TX -> PROGRESS pd = 8 callref = 0x9A52
Progress Ind i = 0x8188 - In-band info or appropriate now available
ISDN Se3/0:15: TX -> PROGRESS pd = 8 callref = 0x9A52
Progress Ind i = 0x81B6 - Reserved value
ISDN Se3/0:15: RX <- STATUS pd = 8 callref = 0x1A52
Cause i = 0x81E41E - Invalid information element contents
Call State i = 0x03
ISDN Se3/0:15: TX -> RELEASE pd = 8 callref = 0x9A52
Cause i = 0x80E5 - Message not compatible with call state
ISDN Se3/0:15: RX <- RELEASE_COMP pd = 8 callref = 0x1A52
I suppose that the router make decision to send Release but base on information which it is received in status message.
This kind status message appears every time when router sends PROGRESS IND i=0x81B6.
I tried to find what Progress Ind i = 0x81B6 - Reserved value means but without successful. Do you know it?.
I ask because sometimes the connection is working and I noticed that in setup there is not Progress Ind i = 0x81B6 - Reserved value .
Maybe IF I know what this value means I will be able to find solution my problem.
Thanks
Rico.
