Grandstream has introduced us with a new device model. This new handset, according to characteristics, can rival Gigaset and Panasonic. The main advantage of this device is 4 simultaneous calls to one base, allowing a registration of up to 5 handsets.
Introducing our on-demand voice broadcasting application on cloud. only pay when you use it.daily price from $2 to $16,etc . no contract, no commitment, use your own trunk.