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Cisco ATA 186 Installation and Configuration Guide
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Cisco ATA 186 Overview
This chapter provides an overview of the Cisco ATA 186 Analog Telephone
Adaptor and describes the system features.
About the Cisco ATA 186
The Cisco ATA 186:
• Is an Internet telephony appliance that converts any regular analog telephone
into an Internet telephone.
• Converts voice into IP data packets that are sent over a network.
• Is installed at the subscriber’s premises.
• Supports two voice ports with their own telephone numbers.
• Has one 10BaseT RJ-45 port and two RJ-11 FXS standard analog telephone
ports.
• Supports both low-complexity voice codecs, such as G.711 ,G.711A-law, and
high-complexity/CELP codecs, such as G.723.1 and G.729A.
• Can be configured to use either the H.323 or the SIP call signaling protocol.
• Operates with Cisco Voice Packet Gateways.
• Operates with H.323- or SIP-compliant Voice Packet Gateways.
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