Cisco Systems 7940G Manual De Usuario

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Cisco Unified IP Phone 7960G/7940G Administration Guide for Cisco Unified Communications Manager 7.0 (SCCP)
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Preparing to Install the Cisco Unified IP Phone on 
Your Network
Cisco Unified IP Phones enable you to communicate using voice over a data network. To provide this 
capability, the IP Phones depend upon and interact with several other key Cisco Unified IP Telephony 
components, including Cisco Unified Communications Manager.
This chapter focuses on the interactions between the Cisco Unified IP Phone 7960G and 7940G and 
Cisco Unified Communications Manager, DNS and DHCP servers, TFTP servers, and switches. It also 
describes options for powering phones.
For related information about voice and IP communications, refer to this URL:
This chapter provides an overview of the interaction between the Cisco Unified IP Phone and other key 
components of the Voice over IP (VoIP) network. It includes the following topics:
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