Today, I'd like to share with you a knowledge point. The details are as follows:
H.248 and H.323 are protocols associated with VoIP.
H.248 known as Megaco, was designed to provide the control of MG by media gateway controllers. In the earlier days of VoIP, it was considered critical, when most of this traffic needed to interface with (PSTN) and modern packet networks, such as the Internet via media gateways.
H.323 is known as ITU-International Telecommunications Unions standard and the logical progression from circuit-switched to packet-switched telephone call processing including video services. H.323 was designed in such a way with a clear understanding of the requirements for multimedia communication over IP networks, as well audio, video, and data conferencing. In this way, it might be easier for users to expect about the same level of stability and compatibility as is found on the PSTN today, although this varies across the globe.
Difference between H.248 vs H.323
The most widely use of H.323 is "Voice over IP" followed by "Videoconferencing", not only SIP is compatible with H.323, but it also supports QoS. It has a critical capability that prioritizes real-time traffic for voice/video, over other modes in an IP network. QoS ensures that applications such as VoIP perform properly, especially when bandwidth resources are constrained. Otherwise, quality is debased and callers experience things like packet loss, echo, and boogie.
No doubt, H.248 was initially the main signaling protocol for VoIP, it has largely been taken by H.323, which was developed from the ground level up to support multimedia traffic on IP networks. Since PSTN still exists, H.248 remains there as it supports (SS7), the signaling standard for legacy telephony. However, the future belongs to IP networks, and H.323 is better suited to support all forms of IP-based applications, such as voice, fax, conferencing, and video.
The business advantages of a VOIP network include more efficient use of bandwidth, lower costs, access to advanced features, and increased revenue opportunities. Replacing the PSTN with VOIP requires the user to understand and implement appropriate use of signaling, database services, bearer control, and codec functionality.
I hope it will be helpful for you. Thank you!
