Registration and Peering Explained

2talk supports two common ways to connect SIP equipment: SIP registration and SIP peering. The right option depends on how your device or PBX authenticates with 2talk.

SIP registration

SIP registration uses a proxy, username, and password. Use this option for most IP phones, ATAs, softphones, and PBX systems that register individual numbers.

• Proxy Server: plus.2talk.com
• Username / Account ID / Authentication ID: Full 2talk phone number
• Password: The SIP password for the number
• Transport: TLS 5061 or UDP 5060
• Registration expiry: 180 seconds, if configurable
• Register with proxy: Yes
• Make calls without registration: No

SIP peering

SIP peering uses a trusted static WAN IP address instead of username and password registration. It is typically used for IP PBX systems with a fixed public IP address.

• SIP Peering IP: 27.111.12.66
• Recommended firewall range: 27.111.12.0/24
• Ports: UDP 5060 or TLS 5061

Peering modes

• Global SIP Peering: Routes all numbers on the account to one customer IP address.
• Standalone Peering: Routes one number to a specific customer IP address.
• Trunking: Uses registration with a trunking number so a PBX can present caller ID for multiple numbers on the account.