Mobile extension

Designed for large organisations with 80+ handsets, Mobile Extension (Mobex) combines fixed and mobile phones under a single numbering plan to allow easy, cost-effective dialling of mobile phones. It gives you the convenience of short code dialling and reduces the cost of all calls made between the company's office and mobile phones.

Company mobile phones become extensions to the main office telephone system through a direct link between your company's fixed voice network and our network. Internal calls can then be made to any mobile extension just as they would be to a fixed extension, wherever the mobile User is.

An experienced O2 Customer Project Manager will work with you on site to ensure the implementation of mobile extension will happen efficiently and without a hitch. This includes communicating the change to your Users and the production of Mobex User guides specifically tailored to your company needs.

Lower cost communication:

• A low monthly subscription, so that you only pay for what you use
• Significant savings on calls from your office fixed-line phones to your mobile phones and vice versa, as well as calls between your mobile phones. This includes mobile phone calls to up to 250 sites in your company that are not connected via the direct link
• Mobile phone calls to ten of your external Customers and Suppliers are also charged at the same discounted rate as calls within your company
• Calls from sites not incorporated in the company network can be connected using O2 Virtual Link
• Different call barring rules can be set up for separate sets of mobile phones within your company, therefore enabling further controls on costs
• Call tagging allows you to manage the split between business and personal calls
• With O2 Business Zones, you can save up to 46 percent on calls to your chosen STD codes

• Simple dialling: your mobile phones have extension numbers giving you improved contactability, so no more having to remember long mobile numbers 
• Easy to divert and transfer calls between mobile phones and fixed phones
• Conference call facilities: hold an ad hoc conversation with five other people

Designed for large organisations with 80+ handsets, Mobile Extension combines fixed and mobile phones under a single numbering plan to allow easy, cost-effective dialling of mobile phones. It gives you the convenience of short code dialling and reduces the cost of all calls made between the company's office and mobile phones. Through the use of bespoke dial rules for mobile phones or groups of mobile phones, companies have full control over the use and therefore the cost of their mobile phones.

The following table details O2’s standard published charges for the Mobile Extension 2001 tariff.  Mobile Extension prices are tailored to meet the specific requirements of your company. For more details please contact your O2 account manager or use the following link:

Mobile Extension requires the utilisation of a link between your company’s telephone system and the O2 network, either via a direct fixed link or a virtual link.  Such products are available from O2 and additional terms and conditions and charges will apply. 

Wherever possible customers will be put on the Mobile Extension tariff at implementation stage, however there could be circumstances when customers are put on a temporary tariff during the installation of any direct or virtual link, in these instances the preferential ‘on-net’ rates may not be available and will be charged in accordance with the O2 Business First Plus Tariff. All other call charges will apply. 

Mobile Extension uses a direct fixed link between your telephone system and the O2 network and offers preferential call rates to and from fixed extensions and mobiles (‘on-net’ call rates). In addition customer sites that are not linked in to O2 can also benefit from mobile originated on net call rates through up to 250 company DDI ranges of up to 1000 numbers being incorporated in to the dial plan, 10 of these ranges can be the customer’s own customers and suppliers. Calls originating from non networked fixed extensions are at the preferential rate if the site is incorporated into the dial plan using O2 Virtual Link. For more details please contact your O2 account manager or use the following link:

¹International Traveller Service (ITS)

ITS is provided at no additional cost per SIM Card per month.  All UK outbound, made roaming and received roaming calls and SMS messages shall be charged in accordance with the ITS  standard published rates which can be found by clicking on the link below

²On Net

Calls made between any mobile and landline numbers in either direction within the company dial plan (excluding landline to landline calls). 

³Off Net Calls

Calls made between any mobile and landline numbers in either direction, where the receiving number is outside of the company dial plan (excluding landline to landline calls)

⁴International Directory Enquiries (118505)

Charges stated are for calls to 118505. Other international directory services are available and charges may vary.

⁵O2 Group Conferencing

Charges may vary if calling from another network. Standard published charges for calls to O2 mobile phones apply if calling from landline.

NB. O2 reserves the right to cancel any registrations not used over a period of 12 months.

⁶ Directory Enquiries (118 500)

Charges stated are for calls to 118 500. Other directory services are available and charges may vary

⁷Premium Rate calls

Premium Rate Call Charges vary and are dependent upon the service called.

⁸Premier Text Messaging

Premier Rate Text Message Charges vary and are dependent upon the service to which a premier text message is sent.

Call Charges

Unless otherwise stated, call charges are quoted by the minute and exclude VAT. GSM voice calls are charged in one second increments, and are subject to a 2.55p minimum call charge. Call durations are rounded up to the nearest second and then the call charge is rounded up to the nearest penny, VAT is then added where applicable to the total of all charges on your bill. Calls made or received when abroad are charged in 15 second increments rounded up to the nearest penny, and are subject to a minimum call charge of one minute. Data calls over GSM are subject to a 5.11p minimum call charge.

Peak Hours

Peak hours: 7am -7pm Monday to Friday.

Weekend hours: midnight Friday to midnight Sunday.

Off Peak hours: all other times when peak or weekend call charges do not apply

⁹GPRS and 3G Pricing

Business Data Sense : is the standard data tariff available with O2 business voice tariffs for 2+ connections. Business Data Sense allows you to use our Mobile Web and Mobile Web VPN services and our DataLink solutions. The first ½ Megabyte (MB) or 512KB of data usage is free each month, then after that usage is priced at £1.80 (ex VAT) per MB. 

Notes:

Data Usage is charged as follows:

Data usage is measured in megabytes (MB). 1MB = 1024 Kilobytes (KB), 1024 MB = 1 Gigabyte (GB)

Data usage is charged in 1KB increments, and charges apply at all times of the day.  Usage is totalled for each APN (Access Point Name) and rounded to the nearest kilobyte on a daily basis, and charges are rounded up to the nearest 1p.   VAT is then added to the total of all charges on your bill.

You are billed for the amount of data that travels over the data network. Please note that your bill may include charges for re-sent data packets and packets added to control the flow of data over the network.

A list of the current countries with whom O2 have a roaming agreement can be found by clicking on the link below.

Notes on International pricing:

Charging is in 1KB increments
Charges apply at all times of day
1MB is 1,024KB

From 1 October 2007 we're removing Tier B pricing. All usage will be charged at the Tier A rate.

Connection to O2 is subject to status, credit checking and O2’s Terms and Conditions for Business Customers.