Zoom VoIP Freedom - With Unique Chooser Zoom VoIP Freedom - With Unique Chooser, Grey, FXS, FXO, IEEE 802.1q, IEEE 802.1p, G.711, G.729, iLBC, 0.575 x 0.441 x 0.11" (14.6 x 11.2 x 2.8 mm), Windows, Macintosh, Linux.
- Contains both FXS and FXO ports; supports bridging and cell phone VoIP access. -Clear, natural-sounding voice quality Zoom's Teleport feature allows automatic access to public phone network for emergency services like E911 and 112 calling. -Uses industry-standard Session Initiation Protocol (SIP). -Supports Quality of Service (QOS). -Supports advanced telephone services including CLASS features. -Includes the Chooser, a Web based service that allows easy one-click configuration of the Model 5800 with dozens of VoIP phone services. -Includes Free VoIP to VoIP calling with Global Village VoIP service. -Configurable for use with other VoIP services not in the Chooser utility. -Proven compatibility with SIP-standard servers from Asterisk, Cisco, NetCentrix, Quintum and more.