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outbound local calls drop after 2 min or so

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t3k123

Technical User
Jan 18, 2011
9
US
thread851-1104034

We have a 1 cluster 4 server 4.13srs8a CM

Having an issue with only one of my remote sites having outbound local calls drop after 2 min on both PRI's on 2 different local routers, LD calling is ok all the time. My user gets a beep when the local call drops, my debug shows 'normal call clearing'. Carrier saying its not them but looks like its them to me. Any input would be helpful.
 
Where is the disconect coming from before you get the normal call clearing? the call manager or the provider side?
Start there.
 
debug isdn q931 on that gateway should tell you where the disconnect is originating..
 
Here is the debug: can you tell me who is disconnecting first,calling party or called party ?

Apr 7 11:25:04.068: ISDN Se0/3/0:23 Q931: TX -> SETUP pd = 8 callref = 0x0009
Bearer Capability i = 0x8090A2
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98397
Exclusive, Channel 23
Calling Party Number i = 0x2181, '212xxxxxx'
Plan:ISDN, Type:National
Called Party Number i = 0xA1, '1917xxxxxx'
Plan:ISDN, Type:National
Apr 7 11:25:04.176: ISDN Se0/3/0:23 Q931: RX <- CALL_PROC pd = 8 callref = 0x8009
Channel ID i = 0xA98397
Exclusive, Channel 23
Apr 7 11:25:09.176: ISDN Se0/3/0:23 Q931: RX <- ALERTING pd = 8 callref = 0x8009
Progress Ind i = 0x8088 - In-band info or appropriate now available
Apr 7 11:25:11.876: ISDN Se0/3/0:23 Q931: RX <- CONNECT pd = 8 callref = 0x8009
Apr 7 11:25:11.900: ISDN Se0/3/0:23 Q931: TX -> CONNECT_ACK pd = 8 callref = 0x0009


Apr 7 11:32:02.569: ISDN Se0/3/0:23 Q931: TX -> DISCONNECT pd = 8 callref = 0x0009
Cause i = 0x8090 - Normal call clearing
Apr 7 11:32:02.825: ISDN Se0/3/0:23 Q931: RX <- RELEASE pd = 8 callref = 0x8009
Apr 7 11:32:02.877: ISDN Se0/3/0:23 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x0009
 
The call manager or router is sending the disco:
Apr 7 11:32:02.569: ISDN Se0/3/0:23 Q931: TX -> DISCONNECT pd = 8 callref = 0x0009
Cause i = 0x8090 - Normal call clearing


Almost seems that they hang up the call on your end. Are you having any crc errors?
 
No errors at all.. it does look like a normal phone call that my guys just hangs up on. I have my network guys taking a look at this but from a CM perspective everything looks normal. I will post resolve as soon as I get it.Thx for all the help !
 
Latest update:
My guys are now saying its only happening on 2 7960s not on all the phones.
I have sent out 2 new phones and will see what the users experience with their local calls. Sounds like a goose chase..
 
This happens to me alot at one of our sites. But they were using Simens digital and forwarding digits to local.
 
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