VoIP Network Technologies

IP telephony or commonly known as Voice Over IP is a voice transmission technology (possible also for multimedia data types etc.) in real time, between two or more users with over networks that use Internet protocols.



Configuring VoIP

a. Configuring the phone to phone configuration connects between the phone and the phone with the network over IP by using a VoIP Gateway device that functions to convert voice into data and vice versa paketisasi process

b. Configuring a PC to PC configuration connect between terminals PC with other PC using a router device. The process of encoding, compression, and encapsulation happened to the PC. While recognizing the router serving the destination IP address contained in a datagram and route in accordance with the objectives diinginkan.Aplikasi used on a PC terminal using SoftPhone software or a specific application such as Neetmeeting or the like.

c. Configuring the Phone to PC or vice versa configuration connects between a PC terminal with a telephone terminal or vice versa by using a gateway for the conversion process sounds into data and vice versa. This configuration can connect between the user terminal with PSTN base with a user terminal in the IP network.

VoIP Protocol

VoIP protocol generally divided into two parts, namely Control / signaling and voice data.

a. VoIP is a traffic control that serves to connect and maintain the actual traffic that is, the voice data. Also keep the entire network operation (router to router communications). Also known as Signaling Packet terms.


Compression

Compression in VoIP technology works to reduce the amount of bandwidth needed on each call and simultaneously serves to increase the number of calls / user. In the compression techniques are also several mechanisms to support QoS among others: Voive Activity Detection (VAD) and Compressed RTP (CRTP). On the table shows some large variations and their codecs paylaod owned.