![Cisco ATA 186 Скачать руководство пользователя страница 28](http://html.mh-extra.com/html/cisco/ata-186/ata-186_administrators-manual_63439028.webp)
1-8
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for H.323 (version 3.0)
OL-4804-01
Chapter 1 Cisco Analog Telephone Adaptor Overview
Software Features
•
Internet Protocol (IP)
•
Real-Time Transport Protocol (RTP)
•
Transmission Control Protocol (TCP)
•
Trivial File Transfer Protocol (TFTP)
•
User Datagram Protocol (UDP)
Cisco ATA H.323 Services
For a list of required H.323 parameters as well as descriptions of all supported Cisco ATA H.323
services and cross references to the parameters for configuring these services, see
Chapter 4, “Basic and
Additional H.323 Services.”
These services include the following features:
•
Supports direct IP dialing to and from a Cisco ATA without using an H.323 gatekeeper
•
Supports direct IP dialing in addition to proxy-routed calls to and from either phone
•
Uses the same configurable MediaPort to transmit and receive RTP audio
•
Uses UDP only for H.323 RAS message transmission
•
Uses a TCP connection for H.225/Q.931 signaling (such as call setup, call proceeding, alerting, and
call connect)
•
IP address assignment—DHCP-provided or statically configured
•
Cisco ATA configuration by means of a TFTP server, web browser, or voice configuration menu.
•
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
•
User-configurable, call-waiting, permanent default setting
•
Silence suppression and comfort noise generation for G.711, G.723.1 (G.723.1 Annex A), and
G.,729 (G.729 Annex B)
•
Caller ID format
•
Ring cadence format
•
Hook-flash detection timing configuration
•
Type of Service (ToS) configuration for audio and signaling ethernet packets
•
Hotline and warmline support (private line automatic ringdown)
•
Debugging and diagnostic tools