What is Voice over Internet Protocol (VoIP)? Is a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks.
ALCON CT-458 YLong range cordless phone line transfer system up to 100 Km
Long range cordless phone line transfer system up to 100 Km - ALCON CT-458 Y Max High range and power - 2 x 45W Video review by C4U Taipei Taiwan - www.cordless4u.com...