Cisco 7960G Phone Manual page 3

Figure 1 Cisco IP Phone Cable Connections
1
RS232 10/100 SW
+
DC48V
2
3
4
Using a cell, mobile, or GSM phone, or a two-way radio in close proximity to a Cisco IP
Caution
Phone might cause interference. For more information, refer to the manufacturer's
documentation of the interfering device.
10/100 PC
5
7
6
3