2 days ago, we had to change the MiL's phone no. due to nuisance calls.
She is on GiffGaff (02) so I duly changed it no problem to the new number.
We changed the number on mine and Liz's phones (we are on Lebara Sims, Vodaphone).
Now when either of us phone the new number it rings once and cuts off the call.
We can send texts ok but not call.
All other family can call her no problems.
Is this a network issue?
We've tried deleting and re-inputting the new number to no avail.
The MiL can call us ok
Any ideas anyone?
My phone is a Pixel 6a and Liz's a Pixel 4a.