DocumentCode :
1392411
Title :
Voice over IP signaling: H.323 and beyond
Author :
Liu, Hong ; Mouchtaris, Petros
Volume :
38
Issue :
10
fYear :
2000
fDate :
10/1/2000 12:00:00 AM
Firstpage :
142
Lastpage :
148
Abstract :
Signaling has been one of the key areas of Voice over IP (VoIP) technologies since inception. H.323 was the key protocol that allowed interoperability of VoIP products and moved the industry away from the initial proprietary solutions. Once the VoIP industry started maturing, some limitations of H.323 came to light. In this article we provide an overview of H.323, describe its capabilities, and discuss how its limitations are being addressed using the concept of gateway decomposition. We also discuss how H.323 can coexist with other protocols such as MGCP, H.248, and SIP which are attracting a lot of interest in the VoIP industry today
Keywords :
open systems; protocols; telecommunication signalling; telecommunication standards; voice communication; H.248; H.323; MGCP; SIP; VoIP products; gateway decomposition; interoperability; overview; protocol; voice over IP signaling; Communication system control; Communication system signaling; Educational institutions; Internet telephony; Multimedia systems; Protocols; Quality of service; Standardization; Telecommunication switching; Videoconference;
fLanguage :
English
Journal_Title :
Communications Magazine, IEEE
Publisher :
ieee
ISSN :
0163-6804
Type :
jour
DOI :
10.1109/35.874981
Filename :
874981
Link To Document :
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