Cisco 7940 Series User Manual

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Cisco IP Phone 7960 and 7940 Series User Guide
78-10182-07
Chapter 2 How to Use the Handset, Speakerphone, and Headset
Using the Headset
Figure 2-1 Cisco IP Phone cable connections
1 AC adapter port (DC48V)
2 Power supply with AC adapter port plug
3 Power cable with wall socket plug
RS232
DC48V
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Cisco 7940 Series Specifications

General

Line Buttons	2
Speakerphone	Yes
Protocol Support	SCCP
Ethernet Ports	2 (10/100 Mbps)
Power Options	Power over Ethernet (PoE)
Audio Codec Support	G.711, G.729a