Prerequisites

The following actions are required to support DID:

Obtain DID service from your service provider.

Establish a working network.

Complete your company’s dial plan.

Establish a working telephony network based on your company’s dial plan.

Install the VIC-2DID cards. For more information about VIC-2DID cards, refer to the Update to Cisco WAN Interface Cards Hardware Installation Guide.

Install at least one other network module or WAN interface card to provide the connection to the LAN or WAN.

Configuring a Voice Port to Support DID

Use the signal did command, with the appropriate signal type, to configure a DID voice port:

West(config-voice-port)#signal did{wink-start immediate delay-dial}

where wink-start, immediate, and delay-dialindicate the signal types. The default signal type is immediate.

As an example, the port can be configured as shown in the following commands:

Router# configure terminal

Router(config)# voice-port1/0

West(config-voice-port)# signal did wink-start

Verifying DID Voice Port Configuration

To verify voice-port configuration, enter the show voice port command. You can specify a voice port or view the status of all configured voice ports. In the following example, the specified port is configured for DID.

Router# show voice port 1/0

Foreign Exchange Station with Direct Inward Dialing (FXS-DID) 1/0 Slot is 1,

Port is 0

Type of VoicePort is DID-IN

Operation State is DORMANT

Administrative State is UP

No Interface Down Failure

Description is not set

Noise Regeneration is enabled

Non Linear Processing is enabled

Music On Hold Threshold is Set to -38 dBm

In Gain is Set to 0 dB

Out Attenuation is Set to 0 dB

Echo Cancellation is enabled

Echo Cancel Coverage is set to 8 ms

Playout-delay Mode is set to default

Playout-delay Nominal is set to 60 ms

Playout-delay Maximum is set to 200 ms

Playout-delay Minimum mode is set to default, value 4 ms

Playout-delay Fax is set to 300 ms

Connection Mode is normal

Connection Number is not set

Initial Time Out is set to 10 s

Interdigit Time Out is set to 10 s

Call Disconnect Time Out is set to 3 s

Ringing Time Out is set to 180 s

Wait Release Time Out is set to 3 s

Companding Type is u-law

Region Tone is set for US

Analog Info Follows:

Currently processing none

Maintenance Mode Set to None (not in mtc mode)

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Cisco Systems 1760 Prerequisites, Configuring a Voice Port to Support did, Verifying did Voice Port Configuration

1760 specifications

The Cisco Systems 1760 series routers are part of Cisco’s popular line of integrated services routers, designed primarily for small to medium-sized businesses and branch offices. The 1760 series was introduced to provide robust connectivity and routing solutions that facilitate secure and reliable networking. Aimed at offering flexibility, these routers integrate multiple functionalities to enhance operational performance.

One of the main features of the Cisco 1760 router is its modularity. It supports various interface and service modules that allow for customization based on specific networking needs. This modular design enables businesses to expand their networking capabilities over time without necessitating a complete hardware overhaul. The router typically comes equipped with two WAN slots and numerous interface options, including Fast Ethernet and serial interfaces.

The 1760 series routers also support advanced security features, providing businesses with a secure environment for their data transmissions. Built-in firewall capabilities, along with support for Virtual Private Network (VPN) protocols, ensure that sensitive information remains protected. Furthermore, the integration of IPsec and MPLS security features assists organizations in maintaining secure and scalable connections across diverse networks.

Another characteristic of the Cisco 1760 is its support for various technologies, including Quality of Service (QoS). QoS functionality allows network administrators to prioritize traffic, ensuring that critical applications receive the bandwidth they require while minimizing latency. This ability is particularly valuable in environments where voice, video, and essential data applications compete for resources.

The router’s ease of management is also noteworthy. With Cisco’s IOS (Internetwork Operating System), the 1760 provides a user-friendly interface allowing for straightforward configuration and monitoring. The simplicity in managing the network devices helps reduce the burden on IT personnel and enhances overall operational efficiency.

Further enhancing the router’s capabilities is its support for voice over IP (VoIP) applications, making it an ideal choice for organizations looking to implement modern telephony solutions. The ability to support multiple voice channels while maintaining adequate data throughput positions the 1760 as an attractive option for businesses transitioning to unified communications.

In summary, the Cisco Systems 1760 series routers exhibit a harmonious blend of modularity, robust security, traffic management, and VoIP support. They effectively meet the demands of modern networking environments, making them a reliable choice for organizations aiming to streamline operations while ensuring secure connectivity. With their adaptable design, these routers can serve as a powerful backbone for enterprise networking needs.