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E1 Disconnect - echo - disconnect - electro static

Dear All

I hope someone can help me with this

Scenrio: E1 GW(H.323) - CM 6.1

Problem

1) Echo

2) Call Disconnect after a period of time (anytime between 1 sec - 10 min)

3) During the Call, you can hear electro static sound

Below is the output of the debug isdn q9321 at the disconnect moment

*Nov 11 13:38:12.176: %CONTROLLER-5-UPDOWN: Controller E1 0/0/0, changed state to down (LOF detected)

*Nov 11 13:38:12.176: %ISDN-6-DISCONNECT: Interface Serial0/0/0:0 disconnected from 25718643 , call lasted 186 seconds

*Nov 11 13:38:12.180: ISDN Se0/0/0:15 Q931: L3_ShutDown: Shutting down ISDN Layer 3

*Nov 11 13:38:12.180: %ISDN-6-LAYER2DOWN: Layer 2 for Interface Se0/0/0:15, TEI0 changed to down

*Nov 11 13:38:12.184: ISDN Se0/0/0:15 Q931: Ux_DLRelInd: DL_REL_IND received from L2

*Nov 11 13:38:13.176: %CONTROLLER-5-UPDOWN: Controller E1 0/0/0, changed state to up

*Nov 11 13:38:13.428: %ISDN-6-LAYER2UP: Layer 2 for Interface Se0/0/0:15, TEI0 changed to up

*Nov 11 13:38:17.176: %CONTROLLER-5-UPDOWN: Controller E1 0/0/0, changed state to down (LOF detected)

*Nov 11 13:38:17.176: ISDN Se0/0/0:15 Q931: L3_ShutDown: Shutting down ISDN Layer 3

*Nov 11 13:38:17.180: %ISDN-6-LAYER2DOWN: Layer 2 for Interface Se0/0/0:15, TEI0 changed to down

*Nov 11 13:38:17.180: ISDN Se0/0/0:15 Q931: Ux_DLRelInd: DL_REL_IND received from L2

*Nov 11 13:38:18.176: %CONTROLLER-5-UPDOWN: Controller E1 0/0/0, changed state to up

*Nov 11 13:38:18.392: %ISDN-6-LAYER2UP: Layer 2 for Interface Se0/0/0:15, TEI 0 changed to up

*Nov 11 13:38:23.176: %CONTROLLER-5-UPDOWN: Controller E1 0/0/0, changed state to down (LOF detected)

*Nov 11 13:38:23.176: ISDN Se0/0/0:15 Q931: L3_ShutDown: Shutting down ISDN Layer 3

*Nov 11 13:38:23.176: %ISDN-6-LAYER2DOWN: Layer 2 for Interface Se0/0/0:15, TEI0 changed to down

*Nov 11 13:38:23.180: ISDN Se0/0/0:15 Q931: Ux_DLRelInd: DL_REL_IND received from L2

*Nov 11 13:38:24.176: %CONTROLLER-5-UPDOWN: Controller E1 0/0/0, changed state to up

*Nov 11 13:38:24.380: %ISDN-6-LAYER2UP: Layer 2 for Interface Se0/0/0:15, TEI 0 changed to up

*Nov 11 13:38:47.516: ISDN Se0/0/0:15 Q931: RX <- DISCONNECT pd = 8 callref = 0x0049

Cause i = 0x8490 - Normal call clearing

*Nov 11 13:38:47.516: ISDN Se0/0/0:15 **ERROR**: L3_BadPeerMsg: event 0x45 cr 0x8049 callid 0x0

*Nov 11 13:38:47.516: ISDN Se0/0/0:15 Q931: TX -> RELEASE_COMP pd = 8 callref = 0x8049

Cause i = 0x80D1 - Invalid call reference value

04A

Router configuration attached.

Any help is much appreciated.

Thanks guys

AT

1 REPLY
Silver

Re: E1 Disconnect - echo - disconnect - electro static

I think you might be hitting this bug:

CSCdx92540: MGCP PRI Backhaul: Call dropps with Invalid Call Reference Value

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