One Net Help & Support

Device help

Share button
Print button

Cisco 7841 desk phone


The devices' availability depends on your solution

Desk phones, conference phones and a range of hardware products are available in One Net Business and One Net Office.

What is the Cisco 7841 desk phone?

The Cisco 7841 is a full-featured VoIP (Voice over Internet Protocol) phone that provides voice communication over an IP network.

Cisco 8851 desk phone

How do I use a Cisco desk phone?

You use a Cisco desk phone as you would any other desk phone. You make and receive calls in the same way you are used to, but the call connects over the internet instead of a phone line.

Your desk phone interacts with One Net

There are several features of your Cisco desk phone that interact directly with One Net.

  • You can use phone shortcuts to do tasks, such as activating and deactivating call forwarding.
  • Some buttons on your phone interact with specific One Net services. For example, if you have a Busy Lamp Field (BLF) key set up for a contact, you can see that contact's availability to take calls.
  • Your desk phone has direct access to your organisation's One Net Address Book, so you always see the latest information.

Read about your desk phone's features >

Who is the Cisco 7841 desk phone for?

The Cisco 7841 is a business-class solution that addresses the needs of knowledge workers, managers, executives and customer care staff.

Key features of the Cisco 7841 desk phone

  • Power over Ethernet support: PoE 802.3af, Class 1
  • One line, supporting up to two connected calls
  • 3.5-inch backlit black-and-white LCD display, 396 x 162px
  • Two 10/100/1000 Gigabit Ethernet ports

Basic supported features

One Net supports the following basic features that appear in the user menu on the phone:

  • Making and answering calls
  • Adjusting the call volume and muting
  • Putting a call on hold
  • Resuming a call
  • Ending a call
  • Transferring a call
  • Redialling
  • Forwarding a call
  • Setting Do Not Disturb
  • Using call pickup
  • Making an ad-hoc conference call
  • Using the phone directories
  • Using the call history lists
  • Accessing voicemail

Additional supported features

One Net supports the following additional features that appear in the user menu on the phone:

  • Creating and using speed dials
  • Customising your LCD screen
  • Using ringtones
  • Viewing phone, network, and call information
  • Changing the date and time
  • Using phone shortcuts

Can't find what you're looking for?

Your One Net administrator

Talk to the One Net administrator in your company. They understand your system best.


Answers to your questions and solutions to any issues.


Contact us

Get in touch if you have any questions.

Contact us

Sorry. The page could not be found.

See more results

Language selector

Main menu

Print and share


This site is for Vodafone One Net customers. If you need help with your Vodafone mobile service, visit the Vodafone Support Centre.

User feedback

Did you find this article useful?



Thanks for your feedback.

Share button
Print button