ZP302 User Manual
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transport as message is above 1300 byte
Enable Strict Proxy
Support the special SIP server-when phone recieves the
patckets sent from server, phone will use the source IP
address, not the address in via field.
Enable GRUU
Set to support GRUU
4.3.3.2. Stun Config
In this web page, you can config SIP STUN.
STUN:
By STUN server, the phone in private network could know the type of NAT and the NAT
mapping IP and port of SIP. The phone might register itself to SIP server with global IP and port to
realize the device both calling and being called in private network.