Administration Guide
Page 17
... Business ATA Administration Guide 17 194487 Introducing Cisco Small Business Analog Telephone Adapters Comparison of ATA Devices 1 Figure 2 ATA Deployment with all ITSPs that support SIP. SIP allows interoperation with Onsite Call Control Optional On-Site Call Control (SPA9000 or Legacy PBX) Telephone/ fax V Linksys ATA Ethernet Broadband Broadband CPE (DSL, cable... high-speed Internet connections. The ATA devices use the Session Initiation Protocol (SIP) open standard so there is an intelligent low-density Voice over IP (VoIP) gateway that are available.
... Business ATA Administration Guide 17 194487 Introducing Cisco Small Business Analog Telephone Adapters Comparison of ATA Devices 1 Figure 2 ATA Deployment with all ITSPs that support SIP. SIP allows interoperation with Onsite Call Control Optional On-Site Call Control (SPA9000 or Legacy PBX) Telephone/ fax V Linksys ATA Ethernet Broadband Broadband CPE (DSL, cable... high-speed Internet connections. The ATA devices use the Session Initiation Protocol (SIP) open standard so there is an intelligent low-density Voice over IP (VoIP) gateway that are available.