[cisco-voip] Disconnect of the POTS connection to the CCME uponphone pick-up

[Petya Kohts]

I've got your point. Thanks for sharing.

But I've tried to swap the wires in the pair -- and
that didn't helped (if this means polarity).


Petya.


MAR> The only time I've seen something similar to this was when we had
MAR> polarity issues on our analog lines.   Our pairs were swapped somehow
MAR> even though it was functioning perfectly fine for the first 3-4 months
MAR> of deployment, it suddenly started behaving as you describe below.  Only
MAR> difference was that I was using a 4FXS/DID card for inbound calls vs.
MAR> the FXO card.

MAR> -Anthony
MAR> --
MAR> Disclaimer:  All these opinions are just my own and have nothing to do
MAR> with my employer.  If you have a problem with any of my personal
MAR> opionions then it is not reflective of the company I work for.  I'm a
MAR> rebel and it is just me.
MAR> -----Original Message-----
MAR> From: cisco-voip-bounces at puck.nether.net
MAR> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Petya Kohts
MAR> Sent: Thursday, January 12, 2006 9:41 AM
MAR> To: cisco-voip at puck.nether.net
MAR> Subject: [cisco-voip] Disconnect of the POTS connection to the CCME
MAR> uponphone pick-up

MAR> Hello.

MAR> I'm experiencing problems with answering incoming calls received to
MAR> Cisco 1760 with VIC2-4FXO.

MAR> The error script is:
MAR> - someone calls to the office
MAR> - user picks up the phone (IP Phone 7905G)
MAR> - there's a little period of time (maybe half of a second) when user
MAR> hears the calling side
MAR> - IP phone goes on-hook (without user putting the receiver to the base)
MAR> - calling side hears busy tone

MAR> I'm not sure but this may depend of ephone-hunt groups, because if I
MAR> pick-up the first phone in the hunt group then line disconnects (almost
MAR> always but not always), if I pick-up the second phone in the hunt group
MAR> the line stays (almost always but not always)!


MAR> Here is the output of "show voice trace" when picking up the 1st phone
MAR> in the hunt group:

MAR> 2/1 State Transitions: timestamp (state, event) -> (state, event) ...
MAR> 194615.790 (FXOLS_RINGING, E_DSP_SIG_0100) ->
MAR> 194615.802 (FXOLS_WAIT_SETUP_ACK, E_HTSP_SETUP_ACK) ->
MAR> 194615.806 (FXOLS_PROCEEDING, E_HTSP_PROCEEDING) ->
MAR> 194615.838 (FXOLS_PROCEEDING, E_HTSP_ALERT) ->
MAR> 194617.733 (FXOLS_PROCEEDING, E_HTSP_VOICE_CUT_THROUGH) ->
MAR> 194617.737 (FXOLS_PROCEEDING, E_HTSP_CONNECT) ->
MAR> 194618.029 (FXOLS_CONNECT, E_DSP_SIG_1100) ->
MAR> 194618.382 (FXOLS_CONNECT, E_HTSP_EVENT_TIMER2) ->
MAR> 194618.398 (FXOLS_POWER_DENIAL, E_HTSP_RELEASE_REQ) ->
MAR> 194620.401 (FXOLS_GUARD_OUT, E_HTSP_EVENT_TIMER) ->
MAR> 194620.401 (FXOLS_ONHOOK, E_DSP_SIG_0100) ->


MAR> Here is the output of "show voice trace" when picking up the 2nd phone
MAR> in the hunt group (talked 2 seconds):

MAR> 2/1 State Transitions: timestamp (state, event) -> (state, event) ...
MAR> 194799.130 (FXOLS_RINGING, E_DSP_SIG_0100) ->
MAR> 194799.142 (FXOLS_WAIT_SETUP_ACK, E_HTSP_SETUP_ACK) ->
MAR> 194799.146 (FXOLS_PROCEEDING, E_HTSP_PROCEEDING) ->
MAR> 194799.182 (FXOLS_PROCEEDING, E_HTSP_ALERT) ->
MAR> 194803.049 (FXOLS_PROCEEDING, E_DSP_SIG_0000) ->
MAR> 194804.131 (FXOLS_PROCEEDING, E_DSP_SIG_0100) ->
MAR> 194807.039 (FXOLS_PROCEEDING, E_HTSP_VOICE_CUT_THROUGH) ->
MAR> 194807.047 (FXOLS_PROCEEDING, E_HTSP_CONNECT) ->
MAR> 194811.138 (FXOLS_CONNECT, E_HTSP_RELEASE_REQ) ->
MAR> 194813.137 (FXOLS_GUARD_OUT, E_HTSP_EVENT_TIMER) ->
MAR> 194813.153 (FXOLS_ONHOOK, E_DSP_SIG_0100) ->


MAR> Another thing I'd like to specify: I had a talk with provider day before
MAR> yesterday and they admitted that they had changed the configuration and
MAR> there might be something wrong with the new one. Since then they have
MAR> been trying to figure out what's wrong but there are no results still.


MAR> Can anyone give me some shortcut, some keywords to read about or just
MAR> explain me what's happening?


MAR> Regards,
MAR> Petya.


MAR> _______________________________________________
MAR> cisco-voip mailing list
MAR> cisco-voip at puck.nether.net
MAR> https://puck.nether.net/mailman/listinfo/cisco-voip