Call Shop Solution
A call shop is a business that provides physical phones for the purpose of making long-distance telephone calls. There are two main types of call shop payment methods; prepaid and postpaid.
G.729 is an audio algorithm of voice transfer data compression that compresses the digital voice into 10 ms duration packages.
ChandioTel VoIP Telecom
Contact us to get Reseller Panels, Calling Cards and much more at very low prices...Contactenos para ser Revendedores de las tarjetas de llamadas por internet...
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