random beeps during an active call

Hi,

there is a few month i am using A400P with 4 FXO and A800P with 8 FXS modules but suddnly everything goes ...
when someone calling us and i pickup the phone from phones which is connected to FXS modules we hear random beeps during an active call.
but when i pick up the phone from my IP Phones there is OK.

Please send me the SSH, i will check for you

there is no valid ip any other way, i have to do lot to get valid ip

please help me

i have found some usefull information, when i hear beeps i see some logs in aserisk CLI which may help to solve this problem:
it seems it detected pulse digit '1' automatically from unknown source!!!

[Jun 26 09:31:52] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:31:54] DEBUG[22417]: chan_dahdi.c:4957 dahdi_handle_event: Detected pulse digit '1'
[Jun 26 09:31:54] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:31:54] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:31:54] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:31:54] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:31:56] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:31:56] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:00] DEBUG[22417]: chan_dahdi.c:4957 dahdi_handle_event: Detected pulse digit '1'
[Jun 26 09:32:00] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:00] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:00] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:00] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:02] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:02] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:06] DEBUG[22417]: chan_dahdi.c:4957 dahdi_handle_event: Detected pulse digit '1'
[Jun 26 09:32:06] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:06] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:06] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:06] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:08] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
[Jun 26 09:32:08] DEBUG[22417]: chan_dahdi.c:6335 dahdi_indicate: Requested indication 20 on channel DAHDI/8-1
ELASTIX*CLI>

Did you use pulsedial=yes in chan_dahdi.conf or dahdi-channels.conf ?