Problem dialing wan spa3201's PSTN!

I have in lan 4 spa. i call PSTN normal through them…i also have one spa in another city. I have set it like others. So when I try to call any number trough SPA in other city…Asterisk gives me

== Spawn extension (piter, 06502073, 1) exited non-zero on ‘SIP/200-082287c0’
– Executing [3454322@default:1] Dial(“SIP/555-0822d6e0”, “(SIP/3454322@piterspa)”) in new stack
[Feb 1 22:22:09] WARNING[26204]: channel.c:3188 ast_request: No channel type registered for ‘(SIP’
[Feb 1 22:22:09] WARNING[26204]: app_dial.c:1106 dial_exec_full: Unable to create channel of type ‘(SIP’ (cause 66 - Channel not implemented)
== Everyone is busy/congested at this time (1:0/0/1)
== Auto fallthrough, channel ‘SIP/555-0822d6e0’ status is ‘CHANUNAVAIL’

Please tell me what am i missing?