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<DIV><FONT face=Arial size=2>Hi</FONT></DIV>
<DIV><FONT face=Arial size=2>below are my configs:</FONT></DIV>
<DIV><FONT face=Arial size=2>pstn(e1)--->asterisk (span1)----->legacy
pbx(connected via span2)-----> legacy analog extensions.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>my dial plan is like callers dial into
asterisk(span1) and they are connected to the agents via the legacy pbx (which
is in sync with asterisk on span2)....the prob is when people call and when
asterisk attempts to transfer the call, the call dconnects with CHANUNVAIL
error...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>>>> ZAPTEL.CONF <BR><PRE><CODE>
span=1,0,0,ccs,hdb3,crc4
span=2,0,0,ccs,hdb3,crc4
bchan=1-15
dchan=16
bchan=17-31
bchan=32-46
dchan=47
bchan=48-62
>>> ZAPATA.CONF <BR><PRE><CODE>
context=pri-pstn
switchtype=euroisdn
pridialplan=local
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
callreturn=yes
group=1
callgroup=1
pickupgroup=1
immediate=yes
musiconhold=default
signalling = pri_cpe
channel => 1-15
channel => 17-31
context=pri-legacy
immediate=yes
group=2
overlapdial=yes
signalling = pri_net
channel => 32-46
channel => 48-62</CODE></PRE><PRE><CODE>>>> EXTENSIONS.CONF <BR><PRE><CODE>
;
; Context PRI-Public
;
[pri-pstn]
;
include => default
;
exten => s,1,Answer </CODE></PRE><PRE><CODE>exten => s,2,Dial(Zap/g2/1888) ; Dial to legacy pbx and sends the 4 DID digits needed for the legacy pbx
exten => s,3,Hangup
;
; Context PRI-legacy
;
[pri-legacy]
;
include => default
;
exten => s,1,Answer
exten => s,2,DigitTimeout,2
exten => s,3,ResponseTimeout,2
exten => _X.,1,Dial(Zap/g1/${EXTEN})
exten => _X.,2,Congestion</CODE>
</CODE></PRE></PRE></CODE></PRE></DIV></DIV></BODY></HTML>