My home Lan line *personal information removed* registered with Sky.com calls to my mobile>**phone_number_removed** goes straight to my giffgaff voice mail can you explain that always.Mobile to mobile it rings.
' @kdmodha Have you set up call forwarding as shown here in this guide if so follow instructions to cancel it call forwarding and hidden parts https://community.giffgaff.com/t5/Using-giffgaff/Useful-Network-Shortcodes/ta-p/5131990#M638
Or dial this into phone to cancel all diverts##002#
@kdmodha Good morning Mr Modha, is it only when you call from your landline to your giffgaff mobile that you get problems? , what happens if you call your giffgaff number from ANOTHER phone)? (A friend or family members phone) what happens? Is it engaged or going to voicemail?
If everything is OK from OTHER phones, you ought to contact your landline provider Sky.