[cisco-voip] Calls not completing to some mobile prefixes

[Ryan Ratliff]

Mar 18 10:56:52.538 GMT: ISDN Se4/1:15 Q931: RX <- PROGRESS pd = 8
callref = 0x80B2
	Progress Ind i = 0x8088 - In-band info or appropriate now available

Mar 18 10:56:55.930 GMT: ISDN Se4/1:15 Q931: TX -> DISCONNECT pd = 8
callref = 0x00B2
	Cause i = 0x8090 - Normal call clearing

Upon receipt of the Progress message audio should have been cut  
through to your user so they could hear ringback.  The TX ->  
Disconnect means CUCM initiated the disconnect and Normal call  
clearing indicates it was because the caller hung up the phone.

At this point I'd ask the user what they heard that caused them to  
hang up the phone?

-Ryan

On Mar 18, 2008, at 9:19 AM, kevin gannon wrote:

We have a E1 trunk to a mobile carrier for cheaper calls. Some blocks
of numbers will not complete/connect. However if we ring the number
via a trunk to another carrier it works fine.

My hunch is we are disconnecting because we are not getting ALERTING
back quickly enough. However looking at the T timers I can not see one
that might be causing the issue. Looking for suggestions/ideas ?

It is callmanager 6 and it is an IOS gateway being controlled by MGCP.

########################Working Call################################
#debug isdn
Mar 18 10:57:24.250 GMT: ISDN Se4/1:15 Q931: TX -> SETUP pd = 8
callref = 0x00B3
	Bearer Capability i = 0x8090A3
		Standard = CCITT
		Transfer Capability = Speech
		Transfer Mode = Circuit
		Transfer Rate = 64 kbit/s
	Channel ID i = 0xA9839C
		Exclusive, Channel 28
	Calling Party Number i = 0x0181, '6554'
		Plan:ISDN, Type:Unknown
	Called Party Number i = 0x80, '0xxxxxx'
		Plan:Unknown, Type:Unknown

Mar 18 10:57:24.434 GMT: ISDN Se4/1:15 Q931: RX <- CALL_PROC pd = 8
callref = 0x80B3
	Channel ID i = 0xA9839C
		Exclusive, Channel 28

Mar 18 10:57:24.438 GMT: ISDN Se4/1:15 Q931: RX <- PROGRESS pd = 8
callref = 0x80B3
	Progress Ind i = 0x8088 - In-band info or appropriate now available

Mar 18 10:57:28.482 GMT: ISDN Se4/1:15 Q931: ALERTING pd = 8  callref  
= 0x80B3

Mar 18 10:57:44.335 GMT: ISDN Se4/1:15 Q931: CONNECT pd = 8  callref  
= 0x80B3


Mar 18 10:57:45.835 GMT: ISDN Se4/1:15 Q931: RELEASE pd = 8  callref  
= 0x80B3





#############################Failed call:##############################


Mar 18 10:56:52.382 GMT: ISDN Se4/1:15 Q931: TX -> SETUP pd = 8
callref = 0x00B2
	Sending Complete
	Bearer Capability i = 0x8090A3
		Standard = CCITT
		Transfer Capability = Speech
		Transfer Mode = Circuit
		Transfer Rate = 64 kbit/s
	Channel ID i = 0xA9839C
		Exclusive, Channel 28
	Calling Party Number i = 0x0181, '8343'
		Plan:ISDN, Type:Unknown
	Called Party Number i = 0x80, '0xxxxxx'
		Plan:Unknown, Type:Unknown
		
Mar 18 10:56:52.534 GMT: ISDN Se4/1:15 Q931: RX <- CALL_PROC pd = 8
callref = 0x80B2
	Channel ID i = 0xA9839C
		Exclusive, Channel 28

Mar 18 10:56:52.538 GMT: ISDN Se4/1:15 Q931: RX <- PROGRESS pd = 8
callref = 0x80B2
	Progress Ind i = 0x8088 - In-band info or appropriate now available

Mar 18 10:56:55.930 GMT: ISDN Se4/1:15 Q931: TX -> DISCONNECT pd = 8
callref = 0x00B2
	Cause i = 0x8090 - Normal call clearing

Mar 18 10:56:56.234 GMT: ISDN Se4/1:15 Q931: RX <- RELEASE pd = 8
callref = 0x80B2
Mar 18 10:56:56.246 GMT: ISDN Se4/1:15 Q931: TX -> RELEASE_COMP pd = 8
  callref = 0x00B2
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