Hello to the group,
I just install a new Asterisk system in order to be used as controller of a radio shack.
I install Suse Linux ver. 10.1 with Kernel 2.6
I install Asterisk-1.2.14 including app_rpt with a TDM400P with 2 FXS daughter boards.
I wiil use the simplex interface as described at http://www.hamwlan.net/images/FXS-SIMPLEX-RADIO-V2.jpg in order to interconnect a series of simplex UHF radio to create a network.
Trying to test the system I hooked 2 analog telephone sets replacing the radio interfaces.
Using information send from your very helpful friend Francois BERGERET (f6hqz-m@hamwlan.net) I made adjustments to the pertinent files as follows:
# zaptel.conf
e&m=1-2
loadzone=us
defaultzone=us
#
#EOF
#
Meaning 2 FXS ports configured as
E&M signalling.
;zapata.conf
[channels]
callwaitingcallerid=no
echocancel=yes
echocancelwhenbridged=yes
echotraining=no
relaxdtmf=yes
adsi=off
usercallerid=yes
callgroup=1
pickupgroup=1
group=1
signalling=em_rxtx
immediate=yes
context=channel1
channel=1
context=channel2
channel=2
Meaning 2 FXS ports signalling =
em_rxtx and immediate = yes
;rpt.conf
[1999]
; Node ID of remote base
rxchannel =
Zap/1
; Rx audio/signalling channel
remote =
n
duplex=0
[1998]
rxchannel =
Zap/2
remote =
n
duplex=0
[functions-remote]
[telemetry]
[morse]
[nodes]
1999 =
radio@127.0.0.1/1999
1998 =
radio@127.0.0.1/1998
[memory]
;extensions.conf
[general]
static=yes
writeprotect=no
autofallthrought=yes
[globals]
[default]
[channel1]
exten =>
s,1,rpt(1998|D)
exten =>
s,n,Hangup
[channel2]
exten =>
s,1,rpt(1999|D)
exten =>
s,n,Hangup
With the above configuration we
tried to configure the system as to automatically call the other set each time
the one goes Off Hook.
But this was my
desire.
Unfortunately the system is fully
silent.
When I modified the line in
zapata.conf from signalling=em_rxtx to signalling=em the
system started to call as expected.
Substituting the telephone sets
with the radio interfaces, making a test I have
the following situation:
- Incoming
call is answered OK. = PTT is energized
- Initiating side receives a ring
back condition.
As consequence I loose the
capability to release the line using the COR/BUSY
control.
Making measurements at the
RING/TIP pair I found that incoming call reverses the polarity of the line and
stays at this condition until the line is released some
how.
At the initiating side (Rx) the
polarity is RING – TIP = -48V at idle. When COR/BUSY control change state the
Opto opens and the call is initiated. But after some milliseconds polarity
reverses causing the receive opto to open and the system is in answer
condition. In order to release the line I have to disconnect manually the RJ45
from the board.
Is any one to help
me?
Niagassas
Angelos
Project Manager
Tel. +30 210 4821492
Mob. +30 6977919262
Messenger:
niagassas@hotmail.com
eMail:
niagassas_ang@tellas.gr
