Phone and subscription
The department of physics uses the Mobile extension (MEX) service from SU which replaces the desk phone. You get full functionality on your mobile phone and can refer phone calls if you are ill, at meetings etc. You can also call the four-digit extensions within the SU directly from the mobile phone.

The MEX service offers a complete phone solution with extension number, mobile subscription, switchboard operator service and referral options. The subscription applies so-called flat rate, which means a fixed cost with free calls and text messages within Sweden and within EU / EEA countries. This applies within reasonable limits. Also included is 100 GB of surf. The mobile phone is not included in the subscription and must therefore be purchased separately.
More information about telephony at SU is available here (in swedish)
What is included in the subscription
The subscription includes:
- Free calls and text messages (SMS) within Sweden, EU and EEA.
- 100 GB of surfing in Sweden, the EU and the EEA.
- Calls from Sweden to countries outside the EU/EEA are possible, but if the costs are too high, the department may have to pay extra.
- Calls from outside the EU/EEA are possible, but we recommend that you buy a local solution, such as a prepaid card, in the country you are visiting, otherwise it can be very expensive.
- There is a cost limit for surfing outside the EU/EEA, it has a cost ceiling of 625 SEK, after which it is blocked. In some cases, there may be a delay before the notification that the cap has been reached is sent to you, so you need to be aware that costs can skyrocket.
When your employment ends
Phones purchased through SU must be returned when employment ends. These should be handed in to Ronni Barouta or someone in the systems group.
Last updated: 2025-11-10
Source: Fysinfo