Chapter 5 Parameters and Defaults

Operational Parameters

•Bit 15—Use special character O.

•Bit 16—Use special character P.

Note The Cisco ATA supports the Bellcore FSK method to turn on/off the visual message waiting indicator (VMWI) on a phone when the Cisco ATA receives MWI messages from a server. The Bellcore FSK VMWI is enabled automatically if the CallerIdMethod parameter is configured to use the Bellcore method.

If method=1, set the following bits:

•Bit 2—Reserved.

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

•Bits 7-10—End digit (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 17-19—These bits are for the Start digit for unknown or restricted telephone numbers (valid values are 4 for “A,” 5 for “B,” 6 for “C,” and 7 for “D.”).

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

•Bits 23-24—These bits are for the code that the Cisco ATA should send to the CID device if the telephone number is unknown (valid values are 0 for “00”, 1 for “0000000000”, and 2 for “2”). The value of 3 is reserved and should not be used.

•Bits 25-26—These bits are for the code that the Cisco ATA should send to the CID device if the telephone number is restricted (valid values are 0 for “10”, and 1 for “1”). The values of 2 and 3 are reserved and should not be used.

•Bit 27—Reserved.

•Bit 28—Set to 1 to disable call-waiting caller ID on the Phone 1 port of the Cisco ATA.

•Bit 29—Set to 1 to disable call-waiting caller ID on the Phone 2 port of the Cisco ATA.

•Bit 30—Set to 1 to disable the callee-ID feature on the Phone 1 port of the Cisco ATA.

•Bit 31—Set to 1 to disable the callee-ID feature on the Phone 2 port of the Cisco ATA.

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.

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

•Bits 17-27 are reserved.

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

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Cisco Systems ATA 186 manual Parameters and Defaults Operational Parameters
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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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