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Incoming Call Appearing twice on a 9951 IP Phone

Hi All

I have a call manager 8.6 setup with 9951 IP Phone for Operator. 8 Analog lines are terminated with the voice gateway. All incoming calls from these lines coming to this operator phone. But when an incoming call comes it appears twice on the screen. When the operator selects the line he hears a lot of disturbance ans the caller also listens trhe same. I checked the Line using an analog phone and it appeared fine. Here is the voice-port configuration of the voice gateway.

!

voice-port 0/1/0

trunk-group FXOPORTS

translation-profile incoming FROM-PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone UAE-KH

timeouts call-disconnect 1

timeouts wait-release 1

caller-id enable

connection plar opx 7506

!

voice-port 0/1/1

trunk-group FXOPORTS

translation-profile incoming FROM-PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone UAE-KH

timeouts call-disconnect 1

timeouts wait-release 1

caller-id enable

connection plar opx 7506

!

voice-port 0/1/2

trunk-group FXOPORTS

translation-profile incoming FROM-PSTN

supervisory disconnect dualtone mid-call

supervisory custom-cptone UAE-KH

timeouts call-disconnect 1

timeouts wait-release 1

caller-id enable

connection plar opx 7506

!

!

voice class custom-cptone UAE-KH

dualtone disconnect

  frequency 400

  cadence 400 350

!

 

!
voice-port 0/1/0
trunk-group FXOPORTS
translation-profile incoming FROM-PSTN
supervisory disconnect dualtone mid-call
supervisory custom-cptone UAE-KH
timeouts call-disconnect 1
timeouts wait-release 1
caller-id enable
connection plar opx 7506
!
voice-port 0/1/1
trunk-group FXOPORTS
translation-profile incoming FROM-PSTN
supervisory disconnect dualtone mid-call
supervisory custom-cptone UAE-KH
timeouts call-disconnect 1
timeouts wait-release 1
caller-id enable
connection plar opx 7506
!
voice-port 0/1/2
trunk-group FXOPORTS
translation-profile incoming FROM-PSTN
supervisory disconnect dualtone mid-call
supervisory custom-cptone UAE-KH
timeouts call-disconnect 1
timeouts wait-release 1
caller-id enable
connection plar opx 7506
!

!
voice class custom-cptone UAE-KH
dualtone disconnect
  frequency 400
  cadence 400 350
!

I removed custom cptone configuration and checked and it is still the same. Can anyone please tell me if they have observed the same anywhere and any resolution ? I have implemented the same solution else where too and never had such an issue.

3 REPLIES
Hall of Fame Super Silver

Incoming Call Appearing twice on a 9951 IP Phone

It seems that you may have the same analog line punched down to 2 different ports and you are basically splitting the call as it arrives. I would double check the punch downs.

Chris

Hall of Fame Super Red

Incoming Call Appearing twice on a 9951 IP Phone

Hi there,

I agree with Chris's assessment here that this is almost certainly

a physical/connection issue (+5 Chris! )

It sounds to me like the Tip and Ring from the first two lines have been transposed

(cross punched) So the Tip of line 1 is punched with the Ring of line 2 and vise versa.

You cannot tell this from just listening to the dial tone as it will sound OK. This type of

problem will only be exposed during the "Ring" cycle as you are seeing.

Cheers!

Rob

Cisco Employee

Incoming Call Appearing twice on a 9951 IP Phone

I would agree. Double check the physical connection.

When there is no call activity, just make an inbound call and issue "show voice port summ".

Check if you see two ports go off hook or just one. If you see two ports go off hook, then Chris is correct. If you see only one port go off hook, then check the actual physcial connection on the port, as a bad cable/bad L1 connection can cause port to go off hook and on hook multiple times for the same call, resulting in multiple calls from the same port.

Cheers,

Udit

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