Nortel Networks CTA 500dm manual Calling Line ID, DSR Operation, RI Operation

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AT commands 61

DSR Operation

The DSR Operation Command

&Svalue

sets the operation of the DSR pin. The following table shows the allowable values.

Value

Use

0DSR is always on (default)

1DSR is on after protocol is installed (not supported)

The DSR signal is turned on at start-up to be compatible with Windows95 Plug and Play requirements. This corresponds to a &S setting of 0. No other DSR values are supported.

Result Codes

OK Appears when the value is supported.

ERROR Appears when the selected value is not recognized or is not supported.

RI Operation

The RI pin is asserted on detection of an incoming call that the

CTA 500dm is allowed to accept.

Normal public network cadencing is provided. The RI signal is asserted for 2 seconds, then negated for 4 seconds. This cycle continues until the call is answered, disconnected by the caller, or the CTA 500dm resets (for example, assertion of DTR if &D is 2 or 3).

Calling Line ID

If Calling Line IdentiÞcation is available on an incoming call and is enabled, a single indication is provided both with the Þrst RING indication and when the RI signal is asserted.

The indication occurs in one of two formats. The Þrst is an additional string of numbers that appears with the RING indication. For example, if the calling number is 123-4567, the Þrst RING

P0873832 Issue 05

CTA 500dm On Line Guide

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Contents CTA 500dm in the Digital Network CTA 500dmCTA 500dm Applications Internet accessDial-Up Networking Data-to-data transfersAbout this document CTA 500dm feature summaryFirst-time setup First-time setup CTA 500 dm On Line Guide P0873832 Issue Installation and setup Shock hazard Wall mounting the CTA 500dmCTA 500dm bottom view Compact ICS Modular ICS Setting up the ICSSetting up the PC Configuration Configuring the PC serial port None of the above 14 Configuration Configure CTA 500dm to access PP/MP data calls Adding multiple CTA 500dm configurations Upgrading the CTA 500dm software Uninstalling the CTA 500dm18 Configuration CTA 500dm On Line Guide P0873832 Issue Configure Tapi dialing properties Installing Norstar Tapi SPInstalling Personal Call Manager Using PCM for the first time Page Resource sharing Allowing access to your PC Installing Dial-Up ServerConnecting to a Windows 95 Dial-Up Server Method one Connecting to Resources on the Dial-Up ServerMethod two Click OK Resource sharing CTA 500dm On Line Guide P0873832 Issue AT commands Profile Profile commands summaryLoad Stored Profile on Start-up Load Stored ProfileResult Codes Write Active Profile to Memory StateState commands summary Enter Download State Return to On-line Data StateGeneral General commands summaryEscape Sequence Result CodePage Request Identification Set Local Echo View ParametersDisplay Saved Dial String Save Dial StringResult Code Suppression Control Verbose ControlRegisters Register commands summaryCall Monitoring Result Code Selection Query S-Register Set S-RegisterRegister set Dial Command Call Control commands summaryCall Control Result Codes Answer Command Outgoing Call Control commands summary Hook CommandOutgoing Call Bearer Service Control Outgoing Call ControlChannel Speed Control Incoming Call ControlIncoming Voice Bearer Call Rate Incoming Call Control commands summaryAudio Bearer Call Answer Control Speech Bearer Call Answer ControlRinging Indications Data Bearer Call Answer ControlTCM Ports Protocol Selection TCM Port Protocol Selection CommandRate Adaptation Protocol Selection CTI MUX Mode MP command summaryRate Multiplier Serial Interface Serial Interface commands summarySerial Interface Rate Set Data Bits Set ParitySerial Interface Control Lines Set Stop BitsFlow Control Serial Interface Control Lines commands summaryAT commands Value Use Not supported DTR Operation DCD OperationCTS Operation AT commands ValueDSR Operation Calling Line IDRI Operation Calling Line ID Delivery Control Calling Line ID commands summaryResult Codes Calling Line ID QueryCaller ID Security Caller ID Security Mode Selection Caller ID security commands summaryAdd Number Clear List Delete NumberView List Summary of AT commands CTA 500dm On Line Guide Page XON/XOFF Page Power problem? TroubleshootingLED problem? CTA 500dm does not respond to AT commands sent from your PC AT command problem?Data call problem? CTA 500dm loses data after a data call connection PC receives bad data after a data call connectionCTA 500dm hangs up during a data call For equipment with internal mains supplies AppendixFor equipment with external mains adapters Important Safety InstructionsPlease Read Carefully Network Connection Canada, United States Canadian and US RegulationsFor Class B Host equipment For Class a Host equipmentAddress for warranty and repairs in the United States Warranty InformationPoint-to-Point Protocol Rate adaptation protocol specificationsMultilink PPP Link Assumptions Bearer CapabilitiesCTA 500dm LED Initialization strings Numeric CTA 500dm responsesDB-25 connection DB-25 and DB-9 signal summaryDB-9 connection Acronyms used in this documentCTA 500dm On Line Guide P0873832 Issue

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.
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