Cisco 7942G IP Phone [PC]

CP-7942G Specification

Dimensions (H x W x D)

8.2 x 10.5 x 6 in. (20.32 x 26.67 x 15.24 cm)

Weight

3.5 lb (1.6 kg)

Package Weight

5.2 lb (2.36 Kg)

Phone-Casing Composition

Acrylonitrile butadiene styrene (ABS) plastic in textured dark gray color with silver bezel

Power

Supports IEEE 802.3af PoE (Class 2).

Also supports Cisco Prestandard Power over Ethernet (PoE), allowing powering from any

of the Cisco Inline Power-capable blades and boxes, plus Cisco midspan. 48VDC is required;

it can be supplied locally at the desktop using an optional AC-to-DC power supply (part number

CP-PWR-CUBE-3=) or power injector (CP-PWR-INJ=).

Local power options require a corresponding AC country cord.

Phone Software Requirements

Supported in 8.3(2) and greater

Call Control Compatibility

Supported in Cisco Unified Communications Manager Versions 4.1(3)sr5b,

4.2(3)sr2b, 4.3(1), 5.1.1(b), 5.1(2), 6.0(1) and greater;

Supported in Cisco Unified Communications Express and SRST Version 4.1

Signaling Protocols

Skinny Client Control Protocol (SCCP) and Session Initiation Protocol (SIP) with Cisco call control

Operating Temperature

32 to 104°F (0 to 40°C)

Relative Humidity

10 to 95% (noncondensing)

Storage Temperature

14 to 140°F (-10 to 60°C)

Display

5-inch (12.5 cm), high-resolution (320 x 222), graphical monochrome 4-bit grayscale display.

Wideband Audio

Support for wideband (G.722 codec, adherence to TIA 920), including handset, headset, and

speakerphone (see Q&A for details).

Codec Support

G.711a, G.711µ, G.729a, G.729ab, G.722, and iLBC audio compression codecs are supported.

Speakerphone

Full-duplex speakerphone with acoustic echo cancellation.

Messages Key

Provides direct access to voicemail.

Quality of Service (QoS) Options

Supports differentiated services code point (DSCP) and 802.1Q/p standards.

Security

Positive device identity through X.509v3 Certificates, digitally signed images, cryptographically

secure provisioning, and secure signaling and secure media with AES-128. Cryptography is

not enabled by default and may only be enabled through a cryptographically enabled CUCM.

The phone also contains an 802.1X supplicant and supports EAPOL pass-through.

Language Support

Built-in support for more than 30 languages (dependent on Cisco Unified Communications Manager version).

Configuration Options

IP address assignment can be statically configured or configured through the DHCP client.