Voici l'erreur dans la cli

> Channel SIP/2004-0000000a was answered.
== Starting SIP/2004-0000000a at default,1001,1 failed so falling back to exten 's'
== Starting SIP/2004-0000000a at default,s,1 still failed so falling back to context 'default'
-- Sent into invalid extension 's' in context 'default' on SIP/2004-0000000a
-- Executing [i@default:1] Playback("SIP/2004-0000000a", "invalid") in new stack
-- <SIP/2004-0000000a> Playing 'invalid' (language 'fr')
== Manager 'sendcron' logged off from 127.0.0.1
== Spawn extension (default, i, 1) exited non-zero on 'SIP/2004-0000000a'
-- Executing [h@default:1] DeadAGI("SIP/2004-0000000a", "agi://127.0.0.1:457

L'erreur nous dit que c'est le numero du poste qui serait invalide mais je vois pas lequel celui de l'agent ou ceux des clients?