The disruption affects phone calls, and the firm announced shortly before lunchtime Thursday: "At the moment all Telia calls are disrupted. Customers cannot make calls using mobile phones. SMS messages should be working, according to initial information."

"With respect to calls, turning off VoLTE voice communication on your device can be tried, in order to make calls this way via GSM, or the 2G network," Telia went on.

The company stated that it is aware of the issues and is working to establish its causes.

Telia has stressed that 112 emergency calls will still get through in the case of voice communication outages, as these can be made via other providers' networks.

To do his the Telia SIM card should be removed from the phone, or the phone should be restarted and the emergency call made before entering the phone's PIN if it uses one.

Telia has pledged to make public any new information as soon as it comes in.

Telia emphasized that during mobile communication disruptions, in case of emergency, you can call 112 using the networks of other operators. To do this, before making a call, remove the SIM card from the mobile phone or restart the mobile phone and call the emergency number instead of entering the PIN code.

The company promised to share new information as soon as it becomes available.

ERR staffers who are Telia customers tried making calls at the time of writing, with the result that some outgoing calls came through, but they remained unreachable to callers form other networks.

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