KINERJA VOIP SIP DAN VOIP H.323

Abstract

Development of voice over internet protocol technology is so fast because of  computer and internet technology.  The development of VoIP is caused by  high cost of communication using PSTN line telephone. Then an idea to change voice traffic to computer net which is cheaper appears.  To communicate  using VoIP needs some protocols.  The first major protocol is signal protocol that function as starting, managing, and ending the communication. Some examples of  signal protocols are 11.323 from ITU-T, and Session Initiation  Protocol (SIP) from IETF.  Both can serve VoIP  with different ways.  SIP is  text based, whereas  11.323 is  binary based.  Although as general both protocols have the same performances in developing  VoIP application,  communication quality depends on client program used, code, hardware configuration, and net condition.