Configurations
of GSM/VoIP networks allow the service providers to avoid the local Wired
Public Switched Network (PSTN) in communication with a GMS mobile handset. As a
result, the high rates charged by telephone companies are avoided.
UWTELECOM S.A
UWTELECOM ofrece las mejores soluciones VoIP y numeros 800 en Costa Rica. Nuestros precios son los mas bajos del mercado y la calidad de nuestras llamadas la mejor
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