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
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