The external call transfer – is the call transfer to a telephone line other than the company’s telephone line. The internal call transfer – the transfer of an incoming call to another addressee registered on the same telephone line.
Grandsteam GXV-3140 video phone from Grandstream Networks represents a next generation of interpersonal IP multimedia communications. Extraordinary quality of video, advanced telephone functions and rich user interface are implemented in a smooth industrial design of this stand out device. This model of the phone has crystal clean color 4,3 inch display and 1.3 megapixel CMOS camera, built in dual port switch and wide range of additional interfaces, such as slots for SD cards, USB port, stereo headsets, audio and video output etc, advanced standards of video compression H.263/263+, H.264 and full duplex speaker phone.