Cisco Systems ATA187I1ARF Manual De Usuario
1-7
Cisco ATA 187 Analog Telephone Adaptor Administration Guide for SIP (Version 1.0)
OL-21862-01
Chapter 1 Cisco ATA 187 Analog Telephone Adaptor Overview
Software Features
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Domain Name System (DNS)
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Dynamic Host Configuration Protocol (DHCP)
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Internet Control Message Protocol (ICMP)
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Internet Protocol (IP)
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Real-Time Transport Protocol (RTP)
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Transmission Control Protocol (TCP)
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Trivial File Transfer Protocol (TFTP)
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User Datagram Protocol (UDP)
ATA 187 SIP Services
These services include these features:
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IP address assignment—DHCP-provided or statically configured
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ATA 187 configuration by Cisco Unified Communications Manager configuration interface
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VLAN configuration
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Cisco Discovery Protocol (CDP)
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Low-bit-rate codec selection
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User authentication
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Configurable tones (dial tone, busy tone, alert tone, reorder tone, call waiting tone)
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Dial plans
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SIP proxy server redundancy
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Privacy features
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User-configurable, call waiting, permanent default setting
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Comfort noise during silent period when using G.711
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Advanced audio mode
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Caller ID format
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Ring cadence format
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Silence suppression
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Hookflash detection timing configuration
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Configurable onhook delay
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Type of Service (ToS) configuration for audio and signaling ethernet packets
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Debugging and diagnostic tools
Modem Standards
The ATA 187 supports the following modem standards:
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V.90
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V.92