Let’s look at Grandstream ATA HandyTone-502 Analog Telephone Adapter the latest product in the HandyTone ATA series and Grandstream VoIP product line.
World''''''''''''''''s Leading VOIP company offering reseller program for UAE,Lebanon,Sudan,Qatar,Kuwait & Saudi Arabia. We have Anti block PC Dialer ,and Anti block Mobile Dialer. we have different VOIP port for direct Pap2 phone.