Let’s look at Grandstream ATA HandyTone-502 Analog Telephone Adapter the latest product in the HandyTone ATA series and Grandstream VoIP product line.
Citel : The VoIP Migration Company
Citel’s Portico TVA enables enterprises to connect existing voice infrastructure to a new VoIP platform, saving up to 70% over other VoIP migration alternatives.Citel’s products help eliminate common objections.
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