M

MMS

Stands for Multimedia Messaging Service. These allow you to send pictures, videos and emails from your mobile phone.

Mobile

A phone that can be used while you are mobile. Costs for calling from a landline and a mobile are different.

Mobile operator

This is the company who provides a network for a mobile phone (e.g. Vodafone, Meteor, 3 Ireland etc.).

Mobile web

A service that allows you to use the Internet from your mobile phone (subject to network coverage).

O

Operator

This is the company who provides a network for a mobile phone (e.g. Vodafone, Meteor, 3 Ireland etc.) or a landline telephone service (e.g. Eircom, Virgin Media etc.).

Opt-in

Using some services may opt you in (i.e. add your contact details) to a promotional database. If this is the case, the original promotion will advise you of this and provide information on how to opt-out of the database.

Opt-out

If you are receiving free promotional messages, these will contain instructions on how to opt-out. Follow these instructions to remove your details from the promotional database.

Once-Off PRS

A single payment for a PRS, purchased using a mobile handset. It is not a subscription service (a service with a recurring charge) although it usually involves a number of text messages being sent to the consumer’s handset to pay for the service in question e.g. payment for a once-off service that costs €10 may require sending 4 text messages (charged at €2.50 each) to your phone.