Not receiving incoming calls

[MartinO3315]

I went abroad in February and I set up my phone for roaming while there.. since I've come back I've noticed that callers report they can't connect when ringing me. They just get a busy signal. I've since reset my APN settings but the problem carries on. Any ideas what's gone wrong?

[dalyer]

Anything useful here under "Returned home?"?

https://community.48.ie/t5/The-Knowledgebase/The-Roaming-Troubleshooting-Guide/ta-p/52179

[MartinO3315]

Thanks but my phone was already set up like described in the post