Chapter 7 Configuring and Debugging Fax Services

Debugging the Cisco ATA 186/188 Fax Services

Configuring the Cisco ATA for Fax Mode on a Per-Call Basis

Note The per-call-basis fax mode feature is only available for the H.323 and SIP protocols.

If you want to activate fax mode on a per-call basis, configure the following parameters:

Procedure

Step 1 CallFeatures and PaidFeatures Bit 15 (for line1—mask 0x8000) and Bit 31 (for line2—mask 0x80000000) = 1: This sets the default to enable fax mode on a per-call basis.

Step 2 AudioMode Bit 2 = 0: This disables fax CED tone detection.

Step 3 CallCmd includes *99;xA (99 is the default; the value can be changed to any prefix code.)

To activate a call from your fax machine, enter *99 (default), then enter the telephone number to which you want to send the fax. The next call will automatically revert to normal mode.

Configuring the Cisco IOS Gateway for Fax Mode

On the Cisco gateway, disable both fax relay and fax pass-through at the dial-peer level or system level with the following commands:

Procedure

Step 1 Run the command:

fax rate disable

Step 2 Run the command:

no modem passthrough

Debugging the Cisco ATA 186/188 Fax Services

This section includes the following debugging topics for fax services:

•Common Problems When Using IOS Gateways, page 7-7

•Using prserv for Diagnosing Fax Problems, page 7-9

•Using rtpcatch for Diagnosing Fax Problems, page 7-12

Common Problems When Using IOS Gateways

Table 7-1lists typical problems and actions that might solve these problems for situations in which the Cisco ATA is using fax over a Cisco IOS gateway.

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

 

OL-4008-01

7-7

 

 

 

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Cisco Systems ATA 188 manual Debugging the Cisco ATA 186/188 Fax Services, Configuring the Cisco IOS Gateway for Fax Mode
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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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