A:AnswerHello! The model listed comes with 5 handsets, including the one on the base unit. There is another similar model that has 4 handsets KX-TG994SK. -M
A:AnswerHi, Eddy! Yes, you can add one more handset. We recommend one of the following:
KX-TGEA60
KX-TGEA61
KX-TGFA61B
KX-TGFA71
KX-TGFA85B
KX-TGFA88B
KX-TGTA61
A:AnswerMine is crystal clear. Could be interference (for example, a microwave running nearby), slight possibility of phone cord needing replacement, or a bad set.
A:AnswerHello! This is a landline phone, not an internet phone. Please contact us directly with more details regarding this. If you’re open to discussing it further, please contact Support Team via Live Chat on the Panasonic Website, Contact Us option, Mon-Fri, 9am-5pm EST: https://shop.panasonic.com/contactus . -M
A:AnswerHello! Yes, the phone works with a Bluetooth headset. We encourage you to check our Panasonic Telephone Bluetooth Headset Compatibility FAQ, to review the tested headsets for KX-TGF975S. -C
A:AnswerHi, Monica! The base unit must be placed on a flat surface, however it is possible to mount the base unit on a wall by changing the wall mounting adaptor’s position. We encourage you to check this page regarding the wall mounting: https://help.na.panasonic.com/wp-content/uploads/2023/02/KXTG994SK_TGF975_PNQX9148ZA_ENG_ESP.pdf#page=84 . We hope this is useful to you! -C