Projekt
Protocol), which is used for creation, change and rupture of sessions: transfer of any data from
the sender to the addressee between one or several participants. SIP describes only rules of
connection between devices, therefore together with SIP the information transfer protocol is
used. SIP uses for data transmission protocols RTP (Real-Time Protocol) and SDP (Session
Description Protocol).
So, let's make a simple configuration between two PBXs.
Figure 5.The scheme of SIP connection
Stations' data:
PBX 1 address: http://192.168.252.41 PBX 2 address: http://192.168.252.42
User: admin User: admin
Pass: trikstriks Pass: trikstriks
Phone Numbers: 100-199 Phone Numbers: 200-299
To configure a SIP connection between PBX 1and PBX 2, first of all we need to go to their
annaabi.ee 
