TA Analog Telephone Adapter 191 is the preferred solution for meeting the needs of customers connecting to corporate networks, small offices, or new Unified Communications as a service from the cloud. It has two standard FXS ports that can be independently configured as two Session Initiation Protocol (SIP) registrations. With ATA 191, customers can protect and expand their existing analog investments and simplify the migration to pure VoIP in an affordable and reliable way.
The Cisco ATA 191 Analog Telephone Adapter is designed to work with Cisco call control systems.