Chapter 40 Cisco IP Phones

Directory Numbers

if you want to assign a specific directory number to a phone or if you plan to implement authentication or encryption, as described in Cisco CallManager Security Guide 4.1.

Tip Cisco CallManager automatically disables auto-registration if you configure the

clusterwide security mode for authentication and encryption through the Cisco CTL client.

If you do not use auto-registration, you must manually add phones to the

Cisco CallManager database or use the Bulk Administration Tool (BAT). BAT, a plug-in application, enables system administrators to perform batch add, modify, and delete operations on large numbers of Cisco IP Phones. Refer to the Bulk Administration Tool Guide for Cisco CallManager for detailed instructions on using BAT.

Directory Numbers

Using Directory Number Configuration in Cisco CallManager Administration, you can configure and modify directory numbers (lines) that are assigned to phones. Keep in mind, however, that directory numbers do not always associate with devices (see the “Managing Directory Numbers” section on page 40-30).

You can configure up to 200 calls for a line on a device in a cluster, with the limiting factor being the device. As you configure the number of calls for one line, the calls available for another line decrease. Cisco IP Phones that support the multicall display (such as a Cisco IP Phone 7960) support up to 200 calls per DN and 2 calls per DN for non-multicall display devices (such as Cisco IP Phone 7905).

The Cisco IP Phone displays the following information about each line:

•Unique call identifier (from 1 to 200). This identifier is consistent across all multicall display devices that have a shared line appearance.

•Call select status, an icon which shows the state of the currently selected call.

•Call information such as calling party or called party.

•Call state icon such as connected or hold.

•Duration of a call

 

 

Cisco CallManager System Guide

 

 

 

 

 

 

OL-7135-01

 

 

40-25

 

 

 

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Cisco Systems 7936, 7914, 7935, 12 series manual Directory Numbers, 40-25
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12 series, 7935, 7914, 7936 specifications

Cisco Systems 7936 is a conference phone that is widely recognized for enhancing collaboration in meeting environments. Equipped with advanced features and technologies, this device provides users with a seamless communication experience, making it a preferred choice for businesses of all sizes.

One of the standout features of the Cisco 7936 is its high-definition audio quality. Utilizing wideband audio technology, it ensures crystal clear voice reproduction, allowing participants to hear every word clearly, no matter their distance from the microphone. This feature is particularly valuable in large conference rooms where sound clarity can often be a challenge.

The Cisco 7936 is designed with an integrated microphone array that allows for 360-degree audio pickup. This means that all participants, whether they are sitting directly in front of the device or at the far end of the table, can be heard clearly. With this feature, there is no need for multiple microphones, which simplifies the setup and reduces clutter.

Another key characteristic of the Cisco 7936 is its exceptional ease of use. The phone features a large, intuitive interface with a backlit display, making it easy to navigate through the various options and settings. Users can make calls, access directories, and manage conference features with minimal effort, resulting in a smoother meeting experience.

The Cisco 7936 operates using Power over Ethernet (PoE), which allows the device to receive both power and data through a single Ethernet connection. This not only simplifies installation by reducing the number of cables required but also enhances the flexibility of placement in conference rooms.

In terms of compatibility, the Cisco 7936 works seamlessly with Cisco Unified Communications Manager and other VoIP platforms, ensuring that organizations can integrate it into their existing communication systems with ease. This interoperability allows businesses to leverage their technology investments while providing a reliable conferencing solution.

Security is another critical aspect of the Cisco 7936. The device supports encrypted voice communication protocols, ensuring that sensitive discussions remain private and secure. This is particularly important in corporate settings where confidentiality is paramount.

In summary, the Cisco Systems 7936 conference phone delivers exceptional audio quality, ease of use, and flexible deployment options. Its innovative technologies and robust security features make it an ideal solution for organizations looking to enhance their meeting environments and facilitate effective communication. With the Cisco 7936, businesses can ensure that every meeting is productive, secure, and efficient.
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