clicking sound during the conversation

[sandy_shy2006_DUP]

Hi

I have 50 IPdesktop softphone.

My isssue is when i call from IP to IP the conversation is clear...but when i received/dial to an external line i get a continous click ...click....click sound on the ip phones. External person cannot hear that.It happens only when u receuive and dial on mobile or ISDN lines.

Please assist

regards,

Sandeep

[Eliott_DUP]

Sounds like a synchronisation issue to the carrier.
Try to change the sync priority value to 255 and back to the original value for the outgoing trunk access.

[sandy_shy2006_DUP]

Sounds like a synchronisation issue to the carrier.
Try to change the sync priority value to 255 and back to the original value for the outgoing trunk access.

Thanks Eliott

I also doubt the same. but sorry i could not get the meaning for "back to the original value for the outgoing trunk access"

Regards,

Sandeep

[Eliott_DUP]

Assumed synchro is set on MG2 Board 6 with prio 200:
Set Sync for 2-6 to 255 and back to 200.

[sandy_shy2006_DUP]

Hi Eliott

I tried the way u told me...but all in vain..still the clicking sound is there.

After using this command "infocs" i get the below display


+----------------------------------------------------------------------+
| N_CR | N_CPL | TYPE | N_ACCES | PRIO | SYNC_CLOCK | TG/LK |
+----------------------------------------------------------------------+
| 0 | 17 | NPRAE | 1 | 10 | POT_SYNCHRO | TG:0 |
| 0 | 17 | NPRAE | 0 | 10 | SYNCHRO | TG:0 |
| 0 | 22 | NPRAE | 0 | 65 | POT_SYNCHRO | TG:2 |
| 0 | 22 | NPRAE | 1 | 70 | POT_SYNCHRO | TG:3 |
+----------------------------------------------------------------------+

Hope you can suggest me something on this.

Regards

Sandeep

[Eliott_DUP]

It just shows you, that the Access 0 on card 0-17 (NPRAE) is synchronizing your system.
Does the behavior changes, if you put the access 0 to Prio 11?
The access 1 sould take the synchro.
Another question - what's TG 2 and 3?
Is there the same clicking sound?
Is the issue still there, if all 4 accesses are set to 255? (only for test and not suggested to do via remote)
Is the issue still there, if you change the NPRA card 0-17 against 0-22?

[sandy_shy2006_DUP]

It just shows you, that the Access 0 on card 0-17 (NPRAE) is synchronizing your system.
Does the behavior changes, if you put the access 0 to Prio 11? NOThe access 1 sould take the synchro.
Another question - what's TG 2 and 3?
Is there the same clicking sound?
Is the issue still there, if all 4 accesses are set to 255? (only for test and not suggested to do via remote)
Is the issue still there, if you change the NPRA card 0-17 against 0-22?

Hi Eliott
'

TG 2 is Mobile Line and TG 3 is Qsig to Philip System

Ya there is still the clicking sound. I have replaced the cards also.

If i set all the 4 access to 255 still it behave the same.

I tried different Sync Priority but still no change.

Regards

Sandeep

[tot3nkopf]

I had this once with a terminal on fiber transport solution. CRC was wrong and not detected by terminal equipment. Play with CRC. RAI led was quick flashing during conversation (very odd behavior).

Regards.

[Eliott_DUP]

Can you capture such a call in G711 using wireshark on the PC using the softphone?
I would give us the possibility to extract the audio and hear the click. (Upload it in the pastebin section)
Maybe it will give us more ideas. For the moment I have no more suggestions for you.
In VoIP I had clicking also if the bandwith is too low. What's the network design between PC and INTIP/GD?

[cavagnaro]

I remember a similar issue with Voip where the problem ended being the VoIP daughter boards as were faulty, we changed them and problem solved...