I have two trunks that service my Asterisk box. One for Business and one for Personal. Both lines are available to all phones. On most phones I can add a prefix for it to add when it dials out. Then I would use a dial plan to send the call out on the appropriate trunk. However I have a slew of Polycom 600/601 phones and they do not have that ability. Is there a way for me to do a dial plan by extension SIP/xxxx?
Thanks for any help.