46 AT commands

BUSY Appears when the connection was not completed due to detection of a busy indication in the network.

ERROR Appears when the command was issued while in the On- line Command State, if a stored dial string was speciÞed and the dial string was empty, or if the CTA 500dm is out-of-sync and the network is unavailable.

Answer Command

The Answer Command

A

instructs the CTA 500dm to answer an incoming call immediately. Successful completion of this command does not necessarily indicate the establishment of a rate adaptation call using both B- channels, but it refers to the establishment of the channel.

Any additional characters on the command line are ignored.

The Answer Command can be aborted by the reception of a single character if the character is received before the command is complete.

Result Codes

CONNECT rate When the call is answered, the connect indication displays along with the rate of the connection to the network (not the rate of the connection between the CTA 500dm and the attached computer) either 56,000 or 64,000 bit/s.

Immediately after this indication displays, the device enters the data mode.

OK Appears when the command is aborted by the assertion of DTR and if &D is either 1, 2 or 3 (see ÒSerial Interface Control LinesÓ on page 56 for more details).

ERROR Appears when the command is issued while in the On-line Command State, if there is no incoming call, or if the CTA 500dm is out-of-sync with the ICS.

NO CARRIER Appears when connection is not established due to an error or an abort.

CTA 500dm On Line Guide

P0873832 Issue 05

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Nortel Networks CTA 500dm manual Answer Command

CTA 500dm specifications

Nortel Networks CTA 500dm is a versatile and robust communications technology platform specifically designed to enhance network solutions for businesses and organizations. With a keen focus on delivering high-performance connectivity, the CTA 500dm serves as a critical component in managing voice, video, and data traffic within a unified communications environment.

One of the standout features of the CTA 500dm is its scalability. The platform supports a variety of deployment scenarios, making it suitable for organizations of varying sizes, from small businesses to large enterprises. This scalability allows for seamless upgrades and expansions, ensuring that businesses can adapt their network solutions to meet evolving demands without requiring a complete overhaul of their existing infrastructure.

The CTA 500dm incorporates advanced technologies such as Session Initiation Protocol (SIP), which is essential for facilitating real-time communication sessions, including VoIP calls and video conferencing. SIP allows for the integration of various communication channels, providing users with a unified experience while streamlining management for IT teams. Moreover, the platform supports Quality of Service (QoS) mechanisms, which help prioritize voice and video traffic to ensure optimal performance, reducing latency and enhancing the overall user experience.

Another characteristic of the CTA 500dm is its comprehensive security features. The platform includes robust encryption methods and authentication protocols to safeguard data and voice communications from potential threats. This is particularly vital in an era where cyber threats are increasingly sophisticated, ensuring that organizations can maintain secure operations while conducting vital communications.

Furthermore, the CTA 500dm is designed with user-friendliness in mind. Its intuitive interface simplifies management and configuration tasks, allowing IT administrators to efficiently oversee the system without requiring extensive training or specialized knowledge. Coupled with extensive monitoring and reporting tools, administrators can gain valuable insights into network performance and troubleshoot issues proactively.

In conclusion, the Nortel Networks CTA 500dm stands out as a powerful solution for organizations looking to optimize their communication infrastructure. With its scalability, support for advanced technologies like SIP, strong security features, and user-friendly management capabilities, the CTA 500dm delivers a comprehensive platform for modern communications, ensuring that businesses remain connected, productive, and secure in today’s fast-paced digital landscape.