Basic extensions.conf question

I have a very basic question regarding an entry in the extensions.conf file.

I have an extension set so that my users can dial 9 for an outgoing call to the provider of our SIP trunk, the entry looks like this :

exten => _9X.,1,Set(CALLERID(num)=xxxxyyyyy) exten => _9X.,n,Dial(SIP/0044${EXTEN:1}@xxxxyyyyy)

My SIP provider allows us to have 5 concurrent calls on our service, my question is to allow the 5 calls concurrently do I need 5 sets of this code with the only exception being the number after the : for the $EXTEN variable ?



you no need to do anything. your code is right. if the your provider not support more than 5 concurrent call than you will get the busy or congested message at the placing the 6th call.