Chapter B Setting Up and Using a Cisco Unified IP Phone as a Cisco IPICS Push-to-Talk Device

Using the Cisco IPICS Service on a Cisco Unified IP Phone

•The Cisco IPICS operator configures the digit ID and digit password (PIN) that are used to log into the Cisco IPICS service, or configures the system so that these login credentials are not required. For more information, see the “Managing Dial Login Information for a User” section on page 3-13.

•The channels and VTGs that display in the menu are those that are available for a user when the Cisco IPICS service starts. To view an updated list of channels, press the Update softkey. The Cisco IPICS server does not automatically download channel or VTG information to the phone.

•Channels returned from Cisco IPICS to a Cisco Unified IP Phone must have a multicast connection defined in the Default Location field in the Dial Login tab for the user. (For more information about this tab, see the “Managing Dial Login Information for a User” section on page 3-13.) Channels that do not meet this requirement do not display on the phone.

•A Cisco Unified IP Phone receives a list that is composed of associated channels in alphabetized order, followed by a list of associated VTGs in alphabetical order.

•A Cisco Unified IP Phone does not receive direct two-way channels or direct dial channels because these channels require SIP unicast connections.

•By default, a phone automatically logs out of the Cisco IPICS service after 30 minutes of inactivity. (You can configure this setting in the Administration > Options window. For more information, see the “Managing Cisco IPICS Options” section on page 2-127.)

•A Cisco IPICS user can be logged in to the Cisco IPICS service with the same login credentials on two or more phones simultaneously. In this case, the user can send and receive audio on all of the phones.

•If a phone loses connectivity to the Cisco IPICS server while the phone user is logged in to the Cisco IPICS service, the service retains its current state and the user can continue to use the PTT functionality for the channel or VTG that is currently selected. However, the phone cannot connect to other channels or VTGs until connectivity to the server is re-established.

•When the Cisco Unified Wireless IP Phone 7921 is connected to an active Cisco IPICS channel or VTG, the phone goes into continuous listening mode. In this mode, the phone remains in an active receive state even if Cisco IPICS is not transmitting audio. In this state, the phone continues to draw power from the battery, which limits the battery life to approximately eight hours of talk time. (When the channel or VTG is deactivated, the phone enters standby mode to conserve power.) To ensure that you have adequate an power supply

 

Cisco IPICS Server Administration Guide

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OL-12997-01

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Cisco Systems OL-12997-01 appendix Using the Cisco Ipics Service on a Cisco Unified IP Phone
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OL-12997-01 specifications

Cisco Systems OL-12997-01 is a comprehensive training guide and documentation resource designed to enhance the understanding and operational capacity of users working with Cisco's technologies. This resource primarily focuses on networking fundamentals, specifically aligned with Cisco's certification programs such as CCNA.

One of the main features of OL-12997-01 is its emphasis on foundational networking concepts. It covers the layers of the OSI model, which is crucial for understanding how data is transmitted across networks. The guide delves into various networking protocols, emphasizing TCP/IP and its role in enabling communication between heterogeneous systems.

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In summary, Cisco Systems OL-12997-01 provides a robust foundation for understanding networking principles and Cisco technologies. Its blend of theoretical concepts, practical applications, and coverage of cutting-edge technologies makes it an essential resource for anyone looking to excel in the field of networking and prepare for Cisco's certifications. Whether for new learners or seasoned professionals, this guide serves as a stepping stone towards mastering Cisco's vast ecosystem of solutions.
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