OpFlags, TftpURL, DHCP, VLANSetting | Cisco Systems ATA 188 specs

Chapter 5 Parameters and Defaults

Operating Parameters

Table 5-5	SigTimer Parameter Bit Definitions (continued)

Bit Number		Definition

20-25		Not used by H.323.

26-27		Minimum hook flash time—The minimum on-hook time required for hook flash event.
		Range: 0 to 3
		Default: 0 (60 ms)
		Other possible values: 1=100 ms, 2=200 ms, 3=300 ms.

28-31		Maximum hook flash time—The maximum on-hook time allowed for hook flash event.
		Range: 0 to 15
		Default: 0 (1000 ms)
		Other possible values: 1=100 ms, 2=200 ms, 3=300 ms, 4=400 ms, 5=500 ms, 6=600 ms, 7=700 ms, 8=800
		ms, 9=900 ms, 10=1000 ms, 11=1100 ms, 12=1200 ms, 13=1300 ms, 14=1400 ms, 15=1500 ms.

OpFlags

Description

This parameter enables/disables various operational features.

See Table 5-6 on page 5-33for bit definitions of this parameter.

Value Type

Bitmap

Default 0x2

Voice Configuration Menu Access Code 323

Related Parameters

•VLANSetting, page 5-34

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

Bit Number Definition

0If Bit 0 = 0, the TFTP configuration filename supplied by the DHCP server overwrites the default filename for each Cisco ATA.

If Bit 0 = 1, the default Cisco ATA filename is always used.

1If Bit 1 = 0, the Cisco ATA probes the static network router during the power-up process. If Bit 1 = 1, static network router probing is disabled.

2Reserved.

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

	OL-4008-01	5-33

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.

Cisco Systems ATA 188 manual OpFlags, TftpURL, DHCP, VLANSetting

Models: ATA 188