[Asterisk-Users] PRI Dialing failure?

[mfarver at ticom.com]

So I reached the point where my PRI is accepting incoming calls, but I
cannot dialout.  I must be doing something stupid, but I can't figure it
out.  The Asterisk box is sitting between the Mitel and the phone company,
and has PRI lines to each.  Asterisk was built from CVS r1-0

Log for a call from mitel heading outbound:
-------------------------

    -- Accepting call from '' to '15123455476' on channel 0/14, span 2
Nov 28 15:27:05 DEBUG[1779]: chan_zap.c:1221 zt_enable_ec: No
echocancellation requested
    -- Executing Dial("Zap/38-1", "Zap/g3/5123455476") in new stack
Nov 28 15:27:05 NOTICE[1787]: app_dial.c:743 dial_exec: Unable to create
channel of type 'Zap'
  == Everyone is busy/congested at this time
Nov 28 15:27:05 DEBUG[1787]: app_dial.c:1029 dial_exec: Exiting with
DIALSTATUS=CHANUNAVAIL.
    -- Executing Congestion("Zap/38-1", "") in new stack


The Configs:

-------------------------
zaptel.conf:
-------------------------
#Span 1  T1 to Remote Site
span=1,2,0,esf,b8zs
clear=1-24

#Span 2  Mitel
span=2,0,0,esf,b8zs
bchan=25-47
dchan=48

#Span 3  Verizon
span=3,1,0,esf,b8zs
bchan=49-71
dchan=72

-------------------------
zapata.conf:
-------------------------
[channels]

#Mitel
switchtype=dms100
context=frommitel
signalling=pri_net
group=>1
channel => 25-47

#Verizon
switchtype=dms100
context=external
signalling=pri_cpe
group=>2
channel => 49-71

-------------------------
extensions.conf
-------------------------
[globals]
OUTGOING-TRUNK=Zap/g3

[frommitel]
exten=>1234,1,Playback(vm-goodbye)
exten=>1234,2,Hangup
exten => _1NXXNXXXXXX, 1,Dial(${OUTGOING-TRUNK}/${EXTEN:1})
exten => _1NXXNXXXXXX, 2,Congestion