Hi Every body, How can we define dahdi channels for outboud route for each extension by dialing 9. I mean when extension 200 dial 9xxxxxxxx it can only use channels 1 and 2 for making outgoing calls. extension 201 dial 9xxxxxxxx it can only use chanels 3 and 4 for making outgoing calls. I want all extensions use 9 prefix for making outgoing calls ( not define 9 for extension 200 and 8 for extension 201 and restirct it in custom context ). all can make outgoing calls by 9 prefix but each extension limit to some dahdi channels we decide.