SIP trunk information
SIP server domain name: encreg.a4uc.com.au
Primary SBC IP address (outbound proxy) for SIP signalling: encreg1.a4uc.com.au
Primary SBC port number for SIP signalling: 5061
Secondary SBC IP address for SIP signalling: encreg2.a4uc.com.au
Secondary SBC port number for SIP signalling: 5061
Primary and secondary SBC transport protocol for signalling: TCP
Supported codecs: Voice: G.711A, G.711μ, Fax: T.38
The difference in setup in Yearstar is as below
- In PBX Settings>Sip Settings -Enable TLS and select TLS Connection Method with TLS V1.2,as below, and then reboot the PBX to take effect.


2. Then go to the SIP trunk page and configure it as below. Using the TLS FQDN and setting Sip port as 5061

- With Access4 using SRTP, please enable the SRTP on the SIP trunk page.
