CellEdu+Resources

== = = =CellEdu Resources=

=Resources:=

Cell Phones
http://en.wikipedia.org/wiki/Mobile_phone

VoIP: Voice over Internet Protocol
http://en.wikipedia.org/wiki/VoIP

DID: Direct Inward Dialing
http://en.wikipedia.org/wiki/Direct_Inbound_Dialing Direct Inward Dialing: "**DID**" numbers have particular relevance for [|VoIP] communications. In order for people connected to the traditional [|PSTN] to call people connected to VoIP networks, DID numbers from the PSTN network are obtained by the administrators of the VoIP network, and assigned to a [|gateway] in the VoIP network. The gateway will then route calls incoming from the PSTN across the IP network to the appropriate VoIP user. Similarly, calls originating in the VoIP network will appear to users on the PSTN as originating from one of the assigned DID numbers.

102 Best FREE Phone Services on the Web.
http://www.voip-news.com/feature/102-best-phone-services-032708/

VoIP Review: Search for broadband phone service providers in your area.
http://www.voipreview.org/

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