This is the output from the CLI
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Connected to Asterisk 1.4.1 currently running on asterisk (pid = 5587)
Verbosity is at least 3
-- Starting simple switch on 'Zap/2-1'
== Starting Zap/2-1 at DID_trunk_3,s,1 failed so falling back to exten 's'
== Starting Zap/2-1 at DID_trunk_3,s,1 still failed so falling back to context 'default'
[Apr 16 09:13:13] WARNING[5657]: pbx.c:2432 __ast_pbx_run: Channel 'Zap/2-1' sent into invalid extension 's' in context 'default', but no invalid handler
-- Hungup 'Zap/2-1'
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This is What I have defined in extensions.conf
[DID_trunk_1]
include = default
exten = _X.,1,Goto(default|601|1)
exten = s,1,Goto(default|601|1)
[DID_trunk_2]
include = default
exten = _X.,1,Goto(default|602|1)
exten = s,1,Goto(default|602|1)