Let’s look at Grandstream ATA HandyTone-502 Analog Telephone Adapter the latest product in the HandyTone ATA series and Grandstream VoIP product line.
Matrix is largest selling PBX brand in India. Our wide product range of IP-PBX, IP-Phones and Gateways-VoIP, GSM, BRI/PRI are feature rich and of the best quality in the industry.