Chapter 5 Parameters and Defaults

Telephone Configuration Parameters

CallerIdMethod

Description

This 32-bit parameter specifies the signal format to use for both FXS ports for generating Caller ID format. Possible values are:

•Bits 0-1 (method)—0=Bellcore (FSK), 1=DTMF, 2=ETSI, and 3 is reserved. If method=0 (default), set the following bits:

•Bit 2—Reserved.

•Bit 3 to 8—Maximum number of digits in phone number (valid values are 1 to 20; default is 12)

•Bit 9 to 14—Maximum number of characters in name (valid values are 1 to 20; default is 15)

•Bit 15—If this bit is enabled (it is by default), send special character O (out of area) to CID device if the phone number is unknown.

•Bit 16—If this bit is enabled (it is by default), send special character P (private) to CID device if the phone number is restricted.

•Bits 17 to 27—Reserved.

If method=1, set the following bits:

•Bit 2—Reserved.

•Bits 3-6—Start digit for known numbers (valid values are 12 for “A,” 13 for “B,” 14 for “C,” and 15 for “D.”)

•Bits 7-10—End digit for known numbers (valid values are 11 for “#,” 12 for “A,” 13 for “B,” 14 for “C,” and 15 for “D.”)

•Bits 11—Polarity reversal before and after Caller ID signal (value of 0/1 disables/enables polarity reversal)

•Bits 12-16—Maximum number of digits in phone number (valid values are 1 to 20; default is 15)

•Bits 17 to 19—Start digit for unknown or restricted numbers (valid values are 4 for “A,” 5 for “B,”

6for “C,” and 7 for “D.”)

•Bits 20 to 22—End digit for unknown or restricted numbers (valid values are 3 for “#,” 4 for “A,” 5 for “B,” 6 for “C,” and 7 for “D.”)

•Bits 23 to 24—Code to send to the CID device if the number is unknown (valid values are 0 for “00,”

1for “0000000000,” and 2 for “2.” 3 is reserved and should not be used.

•Bits 25 to 26—Code to send to the CID device if the number is restricted (valid values are 0 for “10,” and 1 for “1.” 2 and 3 are reserved and should not be used.

•Bits 27 to 31—Reserved.

If method=2, set the following bits:

•Bit 2—Set to 0 to have the Cisco ATA transmit data prior to ringing by using the Ring-Pulse Alerting Signal (RP-AS); set to 1 to have the Cisco ATA transmit data after the firsr ring.

•Bits 3-8—Maximum number of digits in a phone number (valid values are 1 to 20; default is 12).

•Bits 9-14—Maximum number of characters in a name (valid values are 1 to 20; default is 15).

•Bit 15—If this bit is enabled (it is enabled by default), send special character O (out of area) to CID device if telephone number is unknown.

Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for H.323 (version 3.0)

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Cisco Systems ATA 186, ATA 188 manual CallerIdMethod
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ATA 188, ATA 186 specifications

The Cisco Systems ATA 186, or Analog Telephone Adapter, revolutionized the way traditional telephony interacted with Voice over Internet Protocol (VoIP) systems. Designed primarily for home and small office use, the ATA 186 allows users to connect standard analog phones and fax machines to a network, enabling them to take advantage of the benefits of VoIP technology.

One of the defining features of the ATA 186 is its dual port architecture. It includes two FXS ports, allowing users to connect up to two analog telephones. This functionality means that multiple devices can leverage VoIP services simultaneously without the need for separate adapters for each phone. The flexibility of the ATA 186 helps streamline the user experience, facilitating voice communication over an IP network while ensuring users can still use their existing phone equipment.

The ATA 186 employs various technologies to maintain high-quality voice calls. It supports standard voice codecs such as G.711 and G.729, which ensure efficient bandwidth usage while preserving call clarity. The adaptive jitter buffer technology further enhances call quality, compensating for network variations and minimizing latency, which is crucial for clear and uninterrupted conversations.

Additionally, the ATA 186 provides users with advanced calling features that were traditionally available only on PBX systems. These features include caller ID, call waiting, and voicemail functionality, integrating seamlessly with typical telephony services. The device also supports T.38 fax relay, allowing users to send and receive faxes over the internet, thus addressing the needs of environments where fax communication remains essential.

The security of VoIP conversations is also a priority for the ATA 186. It employs encryption protocols such as Secure Real-time Transport Protocol (SRTP) and Transport Layer Security (TLS), ensuring that voice data is securely transmitted across the network. This focus on security helps protect sensitive information transmitted during calls.

Installation and configuration of the ATA 186 is streamlined, with an intuitive web-based interface that simplifies the setup process. This accessibility makes it suitable for users with varying levels of technical expertise, as frequently required adjustments, such as network configurations and firmware updates, can be easily managed.

In conclusion, the Cisco Systems ATA 186 stands out as a versatile and robust solution for users looking to integrate analog phones into a VoIP environment. With its dual port capabilities, high-quality voice codecs, advanced call features, and security measures, it offers a compelling choice for both residential and commercial users seeking seamless telephony integration. As technology evolves, devices like the ATA 186 remain cornerstones in bridging traditional telephony with modern communication systems.
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