Solved: Transfer key doesn't work on FXS ports

sistemas.sede · ‎08-16-2010

Hi everybody,

The problem I have is: I can transfer calls from an analog phone connected to an ATA186 pressing the "R" key, however, if I connect the same phone to whatever UC's integrated FXS ports I only can transfer pressing the flash hook button, the "R" key does not work. Should I confgure the FXS port with any special command?.

Thanks!

Antonio Maciá.

antyeung · ‎08-17-2010

002537: Aug 17 09:01:34.852: htsp_process_event: [0/0/3, FXSLS_CONNECT, E_DSP_SIG_0100]fxsls_offhook_onhook, HF duration Max=1000, HF duration Min=150
002538: Aug 17 09:01:34.852: htsp_timer - 1000 msec
002539: Aug 17 09:01:34.952: htsp_process_event: [0/0/3, FXSLS_CONNECT, E_DSP_SIG_1100]fxsls_offhook_offhook
002540: Aug 17 09:01:34.952: htsp_timer_stop

Looks like the analog phone is doing a hookflash that is lasting 100 ms. The default minimum hookflash period that the voice port will recognize is 150 ms which you can tell from the debug output "Min=150" or from the CLI command-

UC520#sh voice port 0/0/0 | i fla
Hookflash-in Timing is set to max=1000 ms, min=150 ms
Hookflash-out Timing is set to 400 ms
UC520#

Try configuring the following under the FXS voice port and "shut/no shut" -

voice-port x/x/x

timing hookflash-in 95

Thanks,

Anthony

View solution in original post

antyeung · ‎08-17-2010

What does the "R" key stand for on the analog phone?

Thanks,

Anthony

sistemas.sede · ‎08-17-2010

It stands for "Recall", in our old PBX we used to transfer calls. It does the same function that the hook flash does when transfering calls, a softly on-hook signal to access to different modes of operation.

Regards,

Antonio Maciá.

antyeung · ‎08-17-2010

I forgot to ask, what's the symptom when you press the "R" key when the phone is connected to the FXS port on the UC500 - call drops or nothing?

Can you connect the analog phone to the FXS port of the UC500 and collect the following debugs-

debug voip ccapi inout

debug ephone detail mac-address

debug vpm signal

Pin up a call and press the "R" key. I suspect that we may need to tune the hookflash timers on the voice port.

Thanks,

Anthony

Antonio Macia · ‎08-17-2010

When I press the R key it does nothing, the call keeps connected. Maybe the phone does the on-hook signal so fast that the FXS port do not recognise and as you said, we need to tune the hookflash time.

The debugs are attached.

Thanks.

antyeung · ‎08-17-2010

002537: Aug 17 09:01:34.852: htsp_process_event: [0/0/3, FXSLS_CONNECT, E_DSP_SIG_0100]fxsls_offhook_onhook, HF duration Max=1000, HF duration Min=150
002538: Aug 17 09:01:34.852: htsp_timer - 1000 msec
002539: Aug 17 09:01:34.952: htsp_process_event: [0/0/3, FXSLS_CONNECT, E_DSP_SIG_1100]fxsls_offhook_offhook
002540: Aug 17 09:01:34.952: htsp_timer_stop

Looks like the analog phone is doing a hookflash that is lasting 100 ms. The default minimum hookflash period that the voice port will recognize is 150 ms which you can tell from the debug output "Min=150" or from the CLI command-

UC520#sh voice port 0/0/0 | i fla
Hookflash-in Timing is set to max=1000 ms, min=150 ms
Hookflash-out Timing is set to 400 ms
UC520#

Try configuring the following under the FXS voice port and "shut/no shut" -

voice-port x/x/x

timing hookflash-in 95

Thanks,

Anthony

sistemas.sede · ‎08-17-2010

Solved!.

I changed the hookflash-in min value to 110 msec and it works. Configuring a value of 95msec did not work because the hookflash lasts 100msec > 95msec and the call was disconnected, but with 110 works fine.

Thanks!

antyeung · ‎08-17-2010

Ah yes, my mistake! Glad you were able to get it working.

-Anthony