UC520 is connected to a sip provider which has some star codes that I want to use, but they start with two stars.
They enable dialing SIP URIs, for example, **275 connects me to www.sipbroker.com from which I can dial SIP destinations wihtout using PSTN and thus take advantage of things like G722 or video.
How would you go about building a dial peer to match (and send) something like **275 *9243 3366
or would it be better to program the UC520 so that when a user dials 1-888-947-3988, the call will be routed to ZipDX using IP, by either sending **275 *9243 3366 or 3366@zipdx.com to my SIP provider... if thats preferred, how would I accomplish that?