Grandstream produces an incredible variety of VoIP phones. Shop entry-level phones with one or two lines, to high-end models with an unbelievable amount of features. Whichever you choose, the phones are intuitive to operate and easy to provision with your existing IP PBX. Grandstream IP phones and video phones with Android operating systems set the bar for functionality. Grandstream wireless IP phones improve mobility in the office and reduce clutter.