AT commands 63

returns an ASCII string containing the calling line ID information. This command is valid only during incoming calls and is independent of the Calling Line ID Delivery Control.

If the calling line ID is unknown, the returned string is UNKNOWN. There is no numeric form to the UNKNOWN string. If the calling line ID is known, it is returned as a single text string, as in the concatenated format of the Calling Line ID Delivery Control.

Result Codes

OK Appears when the calling line request is valid.

ERROR Appears when the command could not be completed; for example, when there is no incoming call.

Note: The absence of calling line ID information is not an error condition.

Caller ID Security

Caller ID security provides either call screening or call blocking based on a list of numbers entered by the user. Call screening accepts calls from numbers that are on the list while call blocking accepts calls from numbers that are not on the list. If Caller ID security is disabled all calls are accepted.

The Caller ID security list holds up to ten numbers with a maximum length of 13 digits. You can use Ò?Ó as a wild card character. Incoming calls are compared to the numbers in the list, from right to left, and accepted or blocked as applicable. For instance, a stored number of Ò535?8Ó will accept calls from Ò5-3538Ó and Ò5-3578Ó but not from Ò5-3523Ó.

Note: Call screening and call blocking cannot be enabled simultaneously.

P0873832 Issue 05

CTA 500dm On Line Guide

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Nortel Networks CTA 500dm manual Caller ID Security

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.