|TCP/TLS Proxy||tls.2talk.com (port 5061)|
|SIP Registration||188.8.131.52 (plus.2talk.com)|
|SIP Port – UDP||5060|
|SIP Port – TLS||5061 (ensure transport = TLS)|
|DNS Primary||184.108.40.206 (ns1.2talk.com)|
|DNS Secondary||220.127.116.11 (ns2.2talk.com)|
|Firewall IP Range||18.104.22.168/24|
If using TLS verify whether your PBX or IP phone requires a TLS flag to be set as transport per the example below.
|RTP||Set by your router (our port range is 30,000 – 40,000)|
|UDPTL||Set by your router (our port range is 40,000 – 50,000)|
Real Time Protocol (RTP)
RTP is the protocol used to deliver audio and video over IP networks. RTP uses the UDP protocol because its efficient in low quality networks such as phones communicating over the public internet. (NB – while your router sets the specific RTP port, we will accept communication between the 30-40k range).
We support TLS connections from devices that support this protocol for deployments that require increased security. You can use tls.2talk.com as your proxy/host but set the transport to TCP via 5061.