I have an IP phone but not a SIP Registry. Is it possible for me to set up my IP phone directly with Twilio SIP without having to depend on OpenPBX or FreePBX, just Twilio directly to my IP phone?
I'm Megan from Twilio.
At this time you need a PBX to connect IP phones to our service. With that set up you would be able to send and receive SIP via Twilio.
Hope you find this helpful.