Chapter 3 Configuring the Cisco ATA for SCCP

Configuring the Cisco ATA Using a TFTP Server

The syntax of the cfgfmt program follows:

Syntax

cfgfmt [-eRC4Password] -tpTagFile input-text-file output-binary-file

–-eRC4Passwordis the optional RC 4key to encrypt the binary TFTP file provided by the cfgfmt program (up to eight alphanumeric characters).

–pTagFile is the command used to specify the ptag.dat file that is provided with the Cisco ATA software version you are running. Search on the keyword ptag to find the complete name of the ptag file that is included with the Cisco ATA software for the signaling protocol you are using. Be sure this file resides in the same directory from which you are running the cfgfmt program. The ptag.dat file is used by cfgfmt.exe to format a text input representation of the parameter/value pairs to its output binary representation.

–input-text-fileis the input text file representation of the Cisco ATA configuration file.

–output-binary-fileis the final output binary file that Cisco ATA uses as the TFTP configuration file.

Example

cfgfmt -tmgcp_ptag.dat atadefault.txt atadefault.cfg

Step 4 Store the binary configuration file in the TFTP server root directory, overwriting the atadefault.cfg file that came bundled with the release-software download.

During the boot-up process, the Cisco ATA will download this file as its configuration file unless it first finds a Cisco ATA-specific configuration file named for the MAC address of the Cisco ATA. (If you want to create a MAC-address configuration file for a specific Cisco ATA, see the “Creating a Configuration File for a Specific Cisco ATA” section on page 3-12.)

Note If you want to make configuration changes after boot up, repeat the process of creating or editing the text file containing the desired parameters, then converting the text file to the binary file and storing the binary file on the TFTP server. For the configuration changes to take effect, reset the Cisco ATA. (See the “Resetting the Cisco ATA Using Cisco CallManager” section on

page 3-23.)

Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SCCP)

 

OL-3141-01

3-11

 

 

 

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Cisco Systems ATA 188, ATA 186 manual Syntax of the cfgfmt program follows
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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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