Let’s look at Grandstream ATA HandyTone-502 Analog Telephone Adapter the latest product in the HandyTone ATA series and Grandstream VoIP product line.
VoIP Software Partner Ltd.
We are an IT company specializing in software programming dedicated to the VoIP world. We have developped a VoIP software similar to "GoogleTalk" & capable to provide the same functions/services with the same facility and even lesser need of bandwith. W
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