SIP2SIP Help Center

SIP2SIP has a limited set of help available:

Device settings

To discover the location of the SIP and other related servers like STUN, MSRP and XCAP, SIP devices must use NAPTR and SRV DNS lookups for domain sip2sip.info as specified in RFC3263.

For more details visit this page.

Test numbers

You can call to 3333@sip2sip.info to check if audio and video works for your devices. You can call 4444@sip2sip.info to test your microphone (echo test).