Chapter 6 Call Commands

Call Command Behavior

Table 6-4 Call Command Behavior (continued)

Cisco ATA State and its Definition

Summary of Commands (Input Sequence and Actions)

 

 

RINGING: Cisco ATA is ringing the

• OFH—Stop ringing, answer the call, and go to CONNECTED state.

phone to alert user of an incoming call

 

 

 

CONNECTED: The Cisco ATA is

United States and Sweden:

connected with one far end party;

• R—Hold current call, play dial-tone to dial second number, and go to

Cisco ATA may be the caller or the callee

PREDIAL_HOLDING state.

 

 

 

WAITHOOK: Far end hangs up while in

• R—Stop fast-busy, start dial-tone, and go to PREDIAL state.

CONNECTED state; Cisco ATA plays

 

fast-busy after five seconds in this state

 

 

 

CONNECTED_ALERTING: Cisco ATA

United States:

receives another call while in

• R—Place current call on-hold, answer the waiting call, and go to

CONNECTED state; Cisco ATA plays

CALLWAITING state.

Call Waiting tone periodically (every 10

Sweden:

seconds for US; every second for

Sweden)

• R0—Continue current call, reject the waiting call, and revert to

 

 

CONNECTED state.

 

• R1—Disconnect current call, answer the waiting call, and go to

 

CONNECTED state.

 

• R2—Place current call on-hold, answer waiting call, and go to

 

CALLWAITING state.

 

• R3—Continue with current call, answer the waiting call and go to

 

CONFERENCE state.

 

All Regions:

 

• ONH—Disconnect current call and go to IDLE state (the Cisco ATA then

 

automatically starts ringing the phone, and goes to RINGING state).

 

• AFE hangs up—Go to WAITHOOK_ALERTING state, continue to play

 

CWT.

 

• WFE cancels the call—Stop CWT and revert to CONNECTED state.

 

 

CALL WAITING: Cisco ATA is

United States:

connected to two far end users on the

• R—Place the AFE on-hold and retrieve the WFE.

same line; one is in active conversation

• ONH—Transfer the WFE to the AFE, drop out of the call, and go to

(the active far end or AFE) while the

other is on-hold (the waiting far end or

PREDIAL state.

WFE). This state is initially entered when

Sweden:

the Cisco ATA is connected to one of the

• R1—Disconnect current call, answer the waiting call, and go to

far ends while the other far end calls into

CONNECTED state.

the Cisco ATA.

 

 

• R2—Place the AFE on-hold and retrieve the WFE.

 

• R3—Retrieve the WFE, and go to CONFERENCE state.

 

• R4—Transfer the WFE to the AFE, drop out of the call, and go to PREDIAL

 

state.

 

 

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

 

OL-4008-01

6-9

 

 

 

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Cisco Systems ATA 188 manual Cwt, WFE cancels the call-Stop CWT and revert to Connected state
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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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