=begin options write = root =end options =head2 Including dialed DID in forwarding rule If you forward calls to a SIP or IAX number you may include the DID number to be part of the dial string. When you use this special variable: \${EXTEN}, it will be replaced with the DID number being used at the moment. Forwarding rule examples: SIP/\${EXTEN}@mypbxhost.net IAX2/fromdc:2324tret@mypbxhost.net/\${EXTEN} This feature may be used when you have a lot of DID's and would like to use one L<redirect profile|RedirectProfile> for all of them. Specifying number with \${EXTEN} allows you to distinguish calls coming through different DID's. X<DID>