[Asterisk-Users] X100P random hangups - Please help with suggestions

[Bill Seddon]

<< Both of the X100Ps seem to randomly hang-up both incoming and outgoing 
calls.>>

I think most people who use X100P cards (clone or originals) have had your
experience.  So far as I can tell, the cause is always an interrupt problem.
Specifically that affected X100P cards share an interrupt with one or more
other devices.  Have you checked for shared interrupts using the command:

cat /proc/interrupts

to see if any interrupts are shared?

In my case we have 3 X100P.  At first hang-ups occurred all the time on all
cards.  A quick review showed that all three cards were sharing interrupts:
one with eth0 device and the other two with each other.

After some trial and error I now have a workable system.  Two of the cards
work fine however one, it seems, must share with eth0 and continues to
hangup.

The rules seem to be:

1) If at all possible, try to arrange to have the X100P cards on their own
interrupt.
2) If this is not possible, have them share with devices that are not used
or don't generate many interrupts.  For example one of my cards shares with
an unused USB device and this seems to be fine.

Finally, choose a motherboard that offers flexibility in the use of
interrupts.  Being a thrifty sort, I bought the cheapest mother board I
could.  It appears that one of the compromises the board designers made has
been to share three interrupts across 5 PCI *and* the built-in eth0 device.
As a consequence it is hard (impossible) to arrange use of the slots so that
there is no interrupt sharing.

By contrast, a friend is reusing an old HP machine and each PCI slot (and so
each X100P) seems to have its own interrupt.  In any case there are no
problems - presumably because there are no interrupt conflicts.

Bill Seddon

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Vassilis
Konstantinou
Sent: January 09, 2005 9:14 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [Asterisk-Users] X100P random hangups - Please help with
suggestions

This one is driving me crazy. So any suggestions will be very welcome.

My setup:

Suse Linux 9.0 (Pentium 4, 1GB)
Asterisk: current stable (1.0.3?) - tried the head CVS before Christmas but 
did not fix it
2 X100P clones - one for a UK BT line, one connected to an ATA186 
configured for a UK BT Broabband-Voice service (MGCP)
1 ATA186 (SIP) connected to two dect internal phones (configured as 
extensions 5000-5001)

The problem:

Both of the X100Ps seem to randomly hang-up both incoming and outgoing 
calls. There is no fixed dureation but it always happens. Sometimes as soon 
as a call is answered and sometimes at any point up to 10-15 minutes. All 
calls through my true VOIP lines (I use sipcall in UK and fwd) are fine and 
never disconnect during the call. The X100Ps seem to detect the "real" 
hangup properly (of course).

Things I have tried:

1) The latest CVS (up to early December). No change
2) The current stable. No change
3) Playing with the rxgain in the zapata.conf file (no change)
4) Using the Loopstart instead of Kewlstart. No false hangups here BUT as 
expected lots of line noise. Is this a good clue to what is happening? Are 
there any parameters I can tweak to make the Kewlstart driver a bit more 
reliable?

Please help. This is driving me (and the people using the system crazy).

Vassilis

My current zapata.conf is attached below:

========================

;;
; Zapata telephony interface
;
; Configuration file


[channels]
;
; Default language
;
group => 1
language=en
;
; Default context
;

context=incoming
switchtype=national
usedistinctiveringdetection=no
useincomingcalleridonzaptransfer=yes
rxwink=300
usecallerid=yes
hidecallerid=no
callwaiting=no
usecallingpres=no
callwaitingcallerid=no
threewaycalling=no
transfer=yes
cancallforward=no
callreturn=no
echocancel=yes
echocancelwhenbridged=yes
echotraining=yes
relaxdtmf=yes
rxgain=0.0
txgain=1.5


;
; Specify whether the channel should be answered immediately or
; if the simple switch should provide dialtone, read digits, etc.
;
immediate=no
;musiconhold=default

callprogress=no
progzone=uk
;

usecallerid = yes               ; we want Caller*ID support

cidsignalling = v23             ; UK (BT) Caller*ID uses the V.23 std
cidstart = history              ; use the Zaptel history (X100P)
busydetect=no
signalling=fxs_ks

channel => 1

;BT Broadband Voice - Uses US ID and busysignal on Hangup

busydetect=yes
busycount=6
cidstart = ring              ; ring starts Caller*ID
cidsignalling = bell             ; Cid US
signalling=fxs_ks

channel => 2






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