Good day list,
I have been fighting echo problems on my PRI card.
Everything is working great outbound, however inbound calls have
echo.
I have found the issue but need help in fixing it.
During outbound calling zap show channel 18 shows that the
call is off-hook and echo cancellation is running.
During inbound calling though, zap show channel 18 shows that
the call is ON-HOOK and echo cancellation is turned off.
I have no ideas as to how or why this is happening. Any input is
greatly appreciated.
~ron
[CLI DIAGNOSTICS:]
*CLI zap show channels
Chan Extension Context Language MusicOnHold
pseudofrom-pstn en
18 5134632401 from-pstn en
19 5134632401 from-pstn en
20from-pstn en
21from-pstn en
22from-pstn en
23from-pstn en
*CLI zap show channel 18
Channel: 18CLI
File Descriptor: 19
Span: 1
Extension: 5134632401
Dialing: no
Context: from-pstn
Caller ID string: 513486
Destroy: 0
InAlarm: 0
Signalling Type: PRI Signalling
Owner: Zap/18-1
Real: Zap/18-1
Callwait: None
Threeway: None
Confno: -1
Propagated Conference: -1
Real in conference: 0
DSP: yes
Relax DTMF: no
Dialing/CallwaitCAS: 0/0
Default law: ulaw
Fax Handled: no
Pulse phone: no
Echo Cancellation: 128 taps, currently OFF
PRI Flags: Call
PRI Logical Span: Implicit
Actual Confinfo: Num/0, Mode/0x
Actual Confmute: No
Actual Hookstate: Onhook
[Zapata.conf]
[channels]
language=en
signalling=pri_cpe ; pri_cpe = PRI slave ; pri_net = PRI master
switchtype=national
pridialplan=unknown
echocancel=yes ; You can set this to 32, 64, or 128, tweak to your
needs.
echocancelwhenbridged=yes
echotraining=400 ; Asterisk trains to the beginning of the call, number
is in milliseconds
usecallerid=yes
callerid=asreceived
overlapdial=yes
immediate=no
group=0,1
context=from-pstn
channel = 18-23 ; Set this to 1-15,17-31 for E1
[ZAPTEL.conf]
span=1,1,0,esf,b8zs
bchan=18-23 # set this to 1-15,17-31 for E1
dchan=24 # set this to 16 for E1
defaultzone=us
loadzone=us
oledata.mso
Description: Binary data
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