Chapter 4 Basic and Additional H.323 Services

Important Basic H.323 Services

Establishing Authentication with Cisco H.323 Gatekeeper

You can configure the Cisco ATA to establish authentication with a Cisco H.323 Gatekeeper. The Cisco ATA supports two authentication methods:

•Cisco registration level-security

•Cisco admission-level security (per-call basis)

To configure either authentication method, use the following procedure:

Procedure

Step 1 Set the UseLoginID parameter to 1. This setting indicates that the LoginID0 and LoginID1 fields will be used for Cisco ATA H.323 registration.

Step 2 Set the UID0 and UID1 parameters to the E.164 phone numbers that are assigned to the FXS ports on the Cisco ATA.

Step 3 Set the LoginID0 and LoginID1 parameters to the H.323 ID. The H.323 ID is used when the Cisco ATA registers with the H.323 gatekeeper. This ID is also used as the account ID for the RADIUS server.

Step 4 Set the PWD0 and PWD1 parameters to the passwords for the Phone 1 and Phone 2 FXS ports (the passwords in the RADIUS server), respectively.

Step 5 Set the NTPIP and AltNTPIP parameters to the IP addresses of the NTP servers in your network.

Step 6 Select the authentication method using the AutMethod parameter (0 indicates no authentication; 1 indicates the Cisco registration level security method; 2 indicates the Cisco admission level security method).

Note The authentication methods are Cisco Proprietary H.235 implementations, which use the Cisco access/clear token structure rather than the VocalTec crypto token structure.

Related Configuration Parameters

•UseLoginID, page 5-13

•AutMethod, page 5-14

•LoginID0, page 5-13

•LoginID1, page 5-14

•UID0, page 5-10

•UID1, page 5-11

•PWD0, page 5-10

•PWD1, page 5-12

•NTPIP, page 5-30

•AltNTPIP, page 5-30

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

 

OL-4008-01

4-5

 

 

 

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Cisco Systems ATA 188 manual Establishing Authentication with Cisco H.323 Gatekeeper, Procedure
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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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