Chapter 1 Cisco ATA 187 Analog Telephone Adaptor Overview

Software Features

Domain Name System (DNS)

Dynamic Host Configuration Protocol (DHCP)

Internet Control Message Protocol (ICMP)

Internet Protocol (IP)

Real-Time Transport Protocol (RTP)

Transmission Control Protocol (TCP)

Trivial File Transfer Protocol (TFTP)

User Datagram Protocol (UDP)

ATA 187 SIP Services

These services include these features:

IP address assignment—DHCP-provided or statically configured

ATA 187 configuration by Cisco Unified Communications Manager configuration interface

VLAN configuration

Cisco Discovery Protocol (CDP)

Low-bit-rate codec selection

User authentication

Configurable tones (dial tone, busy tone, alert tone, reorder tone, call waiting tone)

Dial plans

SIP proxy server redundancy

Privacy features

User-configurable, call waiting, permanent default setting

Comfort noise during silent period when using G.711

Advanced audio mode

Caller ID format

Ring cadence format

Silence suppression

Hookflash detection timing configuration

Configurable onhook delay

Type of Service (ToS) configuration for audio and signaling ethernet packets

Debugging and diagnostic tools

Modem Standards

The ATA 187 supports the following modem standards:

V.90

V.92

Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP (Version 1.0)

 

OL-21862-01

1-7

 

 

 

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Cisco Systems ATA187I1ARF manual ATA 187 SIP Services, Modem Standards