United States Ports IPs and our Network

Proxy plus.2talk.com
TCP/TLS Proxy tls.2talk.com (port 5061)
SIP Peering
SIP Registration (plus.2talk.com)
SIP Port – UDP 5060
SIP Port – TLS 5061 (ensure transport = TLS)
DNS Primary (ns1.2talk.com)
DNS Secondary (ns2.2talk.com)
Firewall IP Range
AS Number AS55561

If using TLS verify whether your PBX or IP phone requires a TLS flag to be set as transport per the example below.

Other ports
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)
t.38 (faxing) 4000-6000
Fax fax.2talk.com
Primary NTP n/a

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).

TLS Support

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.