The Global Leader in Pure VoIP SIP Trunking
Learn more about SIP Trunking and what it can do. Topics covered included Switched Access, Proxy at CPE, Multiple ENUM Termination, Bandwidth QoS Management, Cause Code Management, Firewall Traversal and Security. Also covered is SIP Terminology like SIP Methods, SIP Response Codes, SIP User Agent and Client (UA and UAS), SIP Gateway, SIP Proxy Server, Softswitch and RFC 2327 SIP: Session Description Protocol.

SIP Trunking

SIP Education: Trunking Attributes & Terminology

SIP Trunking Attributes - Information and definitions for Switched Access, Proxy at CPE, Multiple ENUM Termination, Bandwidth QoS Management, Cause Code Management, Firewall Traversal and Security

SIP Terminology - Educational descriptions of SIP Methods, SIP Response Codes, SIP User Agent and Client (UA and UAS), SIP Gateway, SIP Proxy Server, Softswitch and RFC 2327 SIP: Session Description Protocol.

BandTel's SIP Trunking Sales Information PDFs