Chapter 4 Basic and Additional H.323 Services

Complete Reference Table of all Cisco ATA H.323 Services

Selecting H.323 Connection and H.245 Transmission Methods

You can configure the H.323 connection method and the H.245 transmission method. Use Bit 0 of the ConnectMode parameter to select either the slow-start procedure or the fast-start procedure for the H.323 connection. Use Bit 1 of the ConnectMode parameter to select either a separate H.245 connection or H.245 tunneling for H.245-message transmission.

Related Configuration Parameter

ConnectMode, page 5-28—Bits 0 and 1

Setting Dial Plans

You can set specific dial plan rules and timeout values. Many of these values are determined on a country-by-country basis.

Related Parameter

DialPlan, page 5-37

Complete Reference Table of all Cisco ATA H.323 Services

Table 4-4is a reference table that lists all configurable features for the Cisco ATA (using H.323), and includes links to the detailed descriptions of the parameters used for configuring these features.

Table 4-4 Configurable Features and Related Parameters

 

 

 

 

Configurable Features

Related Parameters

 

 

 

 

 

 

 

 

 

 

 

 

Audio Media Features

Audio Media Parameters

 

 

 

 

• Low bit-rate codec selection (G.723.1, G.729)

•

LBRCodec, page 5-19

 

 

 

 

•

Silence suppression

•

AudioMode, page 5-20

 

 

 

 

•

RTP media port

•

MediaPort, page 5-19

 

 

 

 

• Preferred audio codec for transmitting and

• TxCodec, page 5-22,RxCodec, page 5-21

 

 

 

 

 

receiving voice data

 

 

 

 

 

 

 

 

•

RTP packet size

•

NumTxFrames, page 5-23

 

 

 

 

 

 

 

 

 

 

 

Audio cut-through configuration

ConnectMode, page 5-28

 

 

 

 

 

 

 

 

 

 

 

Caller ID format

CallerIdMethod, page 5-26

 

 

 

 

 

 

 

 

 

 

 

DTMF and hookflash transmission methods

AudioMode, page 5-20

 

 

 

 

 

 

 

 

 

 

 

Debug and Diagnosis

NPrintf, page 5-35

 

 

 

 

 

 

 

 

 

 

 

Dial plans

DialPlan, page 5-37

 

 

 

 

 

 

 

 

 

 

 

Fax Services Features

Fax Services Parameters

 

 

 

 

• Fax services mode selection

•

AudioMode, page 5-20,ConnectMode,

 

 

 

 

 

 

 

page 5-28

 

 

 

 

• Named Signaling Event (NSE) payload type for

•

ConnectMode, page 5-28

 

 

 

 

 

fax pass-through

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (H.323)

 

 

 

 

4-12

 

 

 

 

 

OL-4008-01

 

 

 

 

 

 

 

 

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Cisco Systems ATA 188 manual Selecting H.323 Connection and H.245 Transmission Methods, Setting Dial Plans, DialPlan
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ATA 188 specifications

The Cisco Systems ATA 188 is a versatile Analog Telephone Adapter designed to facilitate the integration of traditional telephone systems with Voice over Internet Protocol (VoIP) networks. This device has been key in bridging the gap between legacy telephony and modern IP-based communication, allowing users to leverage their existing analog phones while enjoying the benefits of digital connectivity.

One of the main features of the ATA 188 is its ability to connect regular analog phones to a VoIP network, enabling users to make and receive calls over the internet. This significantly reduces calling costs, especially for long-distance and international calls. The ATA 188 supports two phone lines, allowing simultaneous voice calls. This dual-line capability makes it a suitable choice for small businesses or home offices that require multiple lines without the need for extensive infrastructure.

The device is equipped with various technologies that enhance its functionality. It supports the Session Initiation Protocol (SIP) and H.323, making it compatible with a wide range of VoIP service providers. Additionally, the ATA 188 features Quality of Service (QoS) settings, which prioritize voice traffic over the internet, ensuring clear voice quality without interruptions or delays. This is essential for maintaining a professional communication experience, especially in business environments.

Another characteristic of the ATA 188 is its user-friendly configuration interface. It allows users to easily set up and manage their devices through a web-based portal. The configuration process is straightforward, with options to adjust settings such as codec selection, call features including call waiting, and call forwarding functionalities.

Security is also a priority for the ATA 188, as it provides robust protocols to protect call data. The device supports Secure Real-time Transport Protocol (SRTP) and Transport Layer Security (TLS) to encrypt voice traffic and manage signaling securely. This ensures that sensitive conversations remain confidential.

Overall, the Cisco Systems ATA 188 is a reliable and efficient solution for users looking to transition from traditional telephony to VoIP. Its dual-line capacity, compatibility with multiple VoIP standards, user-friendly configuration, and built-in security features make it a valuable asset for both personal and professional communication solutions. In an ever-evolving telecommunications landscape, the ATA 188 remains a relevant and practical choice for integrating legacy telephony with modern internet-based services.
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