Chapter 5 Parameters and Defaults

Operating Parameters

Table 5-6 OpFlags Parameter Operational Features to Turn On or Off (continued)

Bit Number Definition

3If Bit 3=1, the Cisco ATA does not request DHCP option 150 in the DHCP discovery message; some DHCP server do not respond if option 150 is requested.

4If Bit 4 = 1, the Cisco ATA use the VLAN ID specified in the VLANSetting parameter for VLAN IP encapsulation (see the “VLANSetting” section on page 5-34).

5If Bit 5=1, the Cisco ATA does not use VLAN IP encapsulation.

6If Bit 6=1, the Cisco ATA does not perform CDP discovery.

7If Bit 7=1, the Cisco ATA does not allow web configuration. Once the web server is disabled, you must configure the Cisco ATA with the TFTP or voice configuration menu methods.

Examples

1.If the existing OpFlags value is 0x2, select menu option 323 from the voice configuration menu and enter the value 130 (0x82). This disables web configuration.

If you later attempt to access the Cisco ATA web configuration page, the following error messages will be displayed.

–Netscape: The document contained no data. Try again later, or contact the server's administrator.

–Internet Explorer: The page cannot be displayed.

2.If the existing OpFlags value is 0x82, select menu option 323 from the voice configuration menu and enter the value 2 (0x2). This disables web configuration.

8If Bit 8=1, the Cisco ATA does not allow HTTP refresh access with the http://ip/refresh command.

9If Bit 9=1, the Cisco ATA does not allow HTTP reset access with the http://ip/reset command.

10Reserved.

11If Bit 11=0, the Cisco ATA requests the device hostname from the DHCP server.

 

If Bit 11=1, the Cisco ATA uses the device hostname that is specified in DHCP option 12.

 

 

12-13

Reserved.

 

 

14-27

Reserved.

 

 

28-31

To configure the Cisco ATA to prompt the user for the UIPassword when the user attempts to perform a factory

 

reset or upgrade using the voice configuration menu, configure bits 28 to 31 with the value of 6. Any other value

 

for these bits means that the Cisco ATA will not prompt the user for the UIPassword in these cases.

VLANSetting

Description

This parameter is for firmware version 2.15 and 2.14ms, and above.

Bitmap definitions are as follows for the VLANSetting parameter:

•Bits 0-2—Specify VLAN CoS bit value (802.1P priority) for TCP packets.

•Bits 3-5—Specify VLAN CoS bit value (802.1P priority) for UDP packets.

•Bits 6-17—Reserved.

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

5-34

OL-4008-01

 

 

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Cisco Systems ATA 188 manual VLANSetting, Examples
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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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