https://community.bt.com/t5/Home-phone-including-Digital/Advanced-Phone-Z-missed-calls-every-30-mins/m-p/2255792#M86277 <P>I have a fibre system and recently upgraded my phones to an Advanced Phone Z Quad system. These work great but exactly every 30 mins, at 15 mins past the hour and 45 mins past the hour, the screen indicates an incoming call for 1 second then it returns to normal. There is no ringing and the call has no number.</P><P>However, this registers as a missed call... so if I go to bed at midnight and wake up at 8am, my phones show there have been 16 missed calls!!!</P><P>Any ideas what these regular calls every 30 mins are and how to stop them from being registered at missed calls?</P><P>Thank you in advance for your help.</P><P>&nbsp;</P> Sat, 08 Oct 2022 23:41:17 GMT captainsemtex 2022-10-08T23:41:17Z https://community.bt.com/t5/Home-phone-including-Digital/Advanced-Phone-Z-missed-calls-every-30-mins/m-p/2255792#M86277 <P>I have a fibre system and recently upgraded my phones to an Advanced Phone Z Quad system. These work great but exactly every 30 mins, at 15 mins past the hour and 45 mins past the hour, the screen indicates an incoming call for 1 second then it returns to normal. There is no ringing and the call has no number.</P><P>However, this registers as a missed call... so if I go to bed at midnight and wake up at 8am, my phones show there have been 16 missed calls!!!</P><P>Any ideas what these regular calls every 30 mins are and how to stop them from being registered at missed calls?</P><P>Thank you in advance for your help.</P><P>&nbsp;</P> Sat, 08 Oct 2022 23:41:17 GMT https://community.bt.com/t5/Home-phone-including-Digital/Advanced-Phone-Z-missed-calls-every-30-mins/m-p/2255792#M86277 captainsemtex 2022-10-08T23:41:17Z