Cisco SPA2102 User Manual

Cisco Small Business ATA Administration Guide 11
1
Comparison of ATA Devices
Each ATA device is an intelligent low-density Voice over IP (VoIP) gateway that
enables carrier-class residential and business IP Telephony services delivered
over broadband or high-speed Internet connections. An ATA device maintains the
state of each call it terminates and makes the proper reaction to user input events
(such as on/off hook or hook flash). The ATA devices use the Session Initiation
Protocol (SIP) open standard so there is little or no involvement by a middle-man
server or media gateway controller. SIP allows interoperation with all ITSPs that
support SIP.
The ATA Models table summarizes the ports and features provided by the ATA
devices described in this document.
V
V

Cisco SPA2102 Specifications

General

Brand	Cisco
Model	SPA2102
Category	Adapter
Language	English