Cisco Unified IP Phone 7931G User Guide for Cisco Unified Communications Manager 9.0 (SCCP and SIP)
Downloads: This chapterpdf (PDF - 1.14 MB) The complete bookPDF (PDF - 3.39 MB) | The complete bookePub (ePub - 582.0 KB) | The complete bookMobi (Mobi - 0.96 MB) | Feedback




This guide provides an overview of the features available on your phone. You can read it completely for a solid understanding of your phone capabilities or refer to the following table for pointers to commonly used sections.

If you want to...


Explore your phone on your own

Press () > on the phone when you need assistance.

Review important safety information

See Safety and Performance Information.

Connect your phone

See Phone Installation.

Use your phone after it is installed

See Features of Your Cisco Unified IP Phone.

Learn about buttons and softkeys

See Buttons and Hardware.

Make calls

See Basic Call Options.

Put calls on hold

See Hold and Resume.

Mute calls

See Mute.

Transfer calls

See Call Transfer.

Make conference calls

See Conference Calls.

Set up speed dialing

See Speed Dial.

Share a phone number

See Call PickUp.

User your phone as a speakerphone

See Handset, Headset, and Speaker.

Change ring or call volume

See Rings and Message Indicator Customization.

View your missed calls

See Call Logs.

Listen to your voice messages

See Voice Messages.

Additional Information

Cisco Unified IP Phone 7900 Series eLearning Tutorials

(SCCP phones only.)

The Cisco Unified IP Phone 7900 Series eLearning tutorials use audio and animation to demonstrate basic calling features. You can access eLearning tutorials online (for several phone models) from your personal computer. Look for the eLearning tutorial (English only) for your phone model in the documentation list at this URL:



Although an eLearning tutorial may not be available for your specific Cisco Unified IP Phone, see the Cisco Unified IP Phone 7900 Series eLearning tutorials for an overview of the common Cisco Unified IP Phone features and functionality.

Safety and Performance Information

The following sections provide information about the impact of power outages and external devices on your Cisco Unified IP Phone.

Power Outage

Your access to emergency service through the phone depends on the phone being powered. If there is a power interruption, Service and Emergency Calling Service dialing will not function until power is restored. In case of a power failure or disruption, you may need to reset or reconfigure the equipment before using the Service or Emergency Calling Service dialing.

External Devices

Cisco recommends using good quality external devices such as headsets, cables, and connectors that are shielded against unwanted radio frequency (RF) and audio frequency (AF) signals.


Not all Cisco IP Telephony products support external devices, cords or cables. For more information, consult the documentation for your phone.

Depending on the quality of these devices and their proximity to other devices such as mobile phones or two-way radios, some audio noise may still occur. In these cases, Cisco recommends that you take one or more of these actions:

  • Move the external device away from the source of the RF or AF signals.

  • Route the external device cables away from the source of the RF or AF signals.

  • Use shielded cables for the external device, or use cables with a better shield and connector.

  • Shorten the length of the external device cable.

  • Apply ferrites or other such devices on the cables for the external device.

Cisco cannot guarantee the performance of external devices, cables, and connectors.


In European Union countries, use only external speakers, microphones, and headsets that are fully compliant with the EMC Directive [89/336/EC].

Phone Behavior During Times of Network Congestion

Anything that degrades network performance can affect Cisco IP Phone voice and video quality, and in some cases, can cause a call to drop. Sources of network degradation can include, but are not limited to, the following activities:

  • Administrative tasks, such as an internal port scan or security scan

  • Attacks that occur on your network, such as a Denial of Service attack

Cisco Product Security Overview

This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer, and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute, or use encryption. Importers, exporters, distributors, and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately.

Further information regarding U.S. export regulations may be found at http:/​/​​index.php/​regulations/​export-administration-regulations-ear.

Accessibility Features

The Cisco Unified IP Phone 7900 Series provides accessibility features for the vision impaired, the blind, and the hearing and mobility impaired.

For detailed information about the features on these phones, see Accessibility Features for the Cisco Unified IP Phone 7900 Series.

You can also find more information about accessibility at this Cisco website: