Like H.323, SIP transmits speech over UDP, TCP and other Internet network protocols.
A properly configured network architecture ensures reliable operation of VoIP equipment and applications.
acts as a SIP-registrar and allows customers to call through it.
protocol is used to register devices and clients, voice and video calls.
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And rates for Asterisk technical support.
On a virtual or physical server, you install the IP PBX Asterisk, set up a dialplan and its configuration and make a connection to the SIP-channels provider.
Configuring ports, codecs, and VoIP equipment, sometimes re-flashing it to support SIP. Encryption of signaling traffic for secure data transmission.
Docking SIP with other protocols in the signaling part of a communication session. Exchange of voice and video data with physical devices and programs.
to fully work with Asterisk.