I’m using Bandwidth and the preferred way to do a CNAM DIP(lookup) is via SIP NOTIFY, not an HTTP(s) request with them. Is there a way to accomplish that with VitalPBX? And if so, will VitalPBX keep a local DB of the CNAM data, or will it do a SIP NOTIFY each and every time?
Depending what Bandwidth charges per dip, you might want to look at something like www.bulkvs.com . They are much less expensive for us.