Need a little help. I want to connect one main Asterisk Server (SIP1) to a SIP trunk provider. SIP1 will be connected to the provider through one SIP trunk with "unlimited" channels I want to create IAX2 trunks to connect other Customer Asterisk PBX's to SIP1. This is being done for billing purposes. I can aggregate my minutes on the provider trunk to get reduced rates. I will generate billing off each of the customer trunks on SIP1 I have connected SIP1 to the provider. I have connected two PBX's together using IAX2 trunks. (CST1 <> SIP1) I am stumped on how to setup the call routing. Call comes into PROV on DID and is routed to SIP trunk on SIP1. SIP1 should automatically send call out IAX2 trunk to CST1. Extension on CST1 makes outbound call. Call is routed across IAX2 trunk to SIP1 where it is passed to PROV trunk and out PSTN. Any assistance would be greatly appreciated.