People trying to get through to the James Paget Hospital are being asked to ring a different number.
The hospital, which is based in Gorleston, said it was having problems receiving incoming phone calls today.
It is believed to be an external problem and the service provider is currently trying to fix the issue.
To contact the hospital urgently, dial 01493 602862 until the service is restored.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here