Hey guys,
I've been struggling with hangup detection on a Centrex system for a bit
now, I was on site Saturday and I took my DMM with me.
It would appear that this Centrex service provider uses polarity
reversal at the beginning of a call and several times after hangup.
I've been reading the archives for the last year and it looks like there
was some work done that matches my situation. With the DMM, my readings
are:
IDLE: -50.5
RING: 3.0
VOICE: -6.13
HANGUP 3.0
WAIT: -5.13
HANGUP 3.0 (Occurs roughly every 10 seconds)
WAIT: -5.13
HANGUP 3.0 (Occurs roughly every 10 seconds) - Asterisk times out and
hangs up
IDLE: -50.5
I'm using an ADIT 600 with a Tellabs Echo Canceller. Is there any
logging for status on the line for monitoring?
Turning on hanguponpolarityswitch=yes shows that the option is ignored.
I've found in the archives that this works with fxs_ks. The error goes
away when setting a line line for KS, but it still isn't working
My zapata.conf below:
[channels]
context=incoming
signalling=fxs_ls
callprogress=no
usecallerid=no
callreturn=no
echocancel=no
echotraining=no
echocancelwhenbridged=no
rxgain=12.0
txgain=-2.5
group = 1
callerid="Outside" <(xxx) xxx-6139>
musiconhold=tape
jitterbuffers=4
hanguponpolarityswitch=yes
channel => 1
--
Ben Franklin quote:
"Those who would give up Essential Liberty to purchase a little Temporary
Safety, deserve neither Liberty nor Safety."
