[Asterisk-Users] "Unable to create channel of type Zap" Message

[eng.yousri at egypt.com]

Hello

i use TDM11B,and i'm connecting the analog telephone to channel 1, and i'm
trying to use
*CLI> dial 11
at asterisk Console but the following message appeares, and no ringing occures

 Executing Dial("OSS/dsp", "Zap/1|20") in new stack
Apr  1 19:13:42 NOTICE[3781]: app_dial.c:746 dial_exec: Unable to create channel
of type 'Zap'
  == Everyone is busy/congested at this time

my zapata.conf is
-----------------
[channels]
language=en
context=local

signalling=fxo_ks
channel => 1
signalling=fxs_ks
channel => 4

and zaptel.conf is
------------------
fxoks=1
fxsks=4
loadzone = us
defaultzone=us

and extensions.conf
------------------
[local]
exten => 11,1,Dial(Zap/1,20)

waiting for response and thanks in advance

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