need to connect three astersik servers behind a SBS2003 using IAS not NATed to a public Digium Switchbox SBS using IAX ports.
10 freelancers are bidding on average $470 for this job
You need it for IAX only? So, you need to map the 4596 for IAX (binding outside and inside network, can use port forwarding or DMZ method) plus Asterisk ports
Have extensive experience working with Asterisk 1.4 and 1.6. Have integrated and clustered Asterisk within almost every conceivable network environment.