Cisco Systems OL-8978-02 Manual De Usuario

A telephony system built on an IP network instead of the traditional circuit-switched private branch 
exchange (PBX) network is called an IP PBX system. (See 

.) The system’s components are 

described in these sections:

The Cisco IP Phone 7960 provides the connectivity to the IP PBX system. The IP phone has two RJ-45 
jacks for connecting to the external devices: a LAN-to-phone jack and a PC-to-phone jack. The jacks use 
either Category 3 or Category 5 unshielded twisted-pair (UTP) cable. The LAN-to-phone jack is used to 
connect the phone to the LAN using a crossover cable; a workstation or a PC can be connected to the 
PC-to-phone jack using a straight-through cable.

The inline power is designed to work in cables from Category 3, Category 4, Category 5, and later up to 
100 meters. The inline power works with IBM Token Ring STP cable of 100 meters when used with a 
Token Ring to Fast Ethernet adapter (LanTel Silver Bullet SB-LN/VIP-DATA adapter).

Analog Station Gateway

10/100BASE-TX Module *

(WS-X6348-RJ45V)

Analog stations

(phone, fax, modem)

WS-PWR-PNL

IP cloud

(WS-X6624-FXS)

10/100BASE-TX Module

* Catalyst 4000, 5000, and 6000 10/100 modules

Analog Trunk Gateway

Voice Gateway 200

Analog stations

(phone, fax, modem)

Cisco CallManager

Catalyst 6500 series switches

IP phone 

PC

IP phone 

PC

PSTN or PBX

PSTN or PBX

Digital Trunk Gateway

(WS-X6608-T1/E1)

38202