H.323和SIP的区别

H.323：
H.323 是主要基于电话的系统。它的设计是整体设计。 H.323 的范围或可量化性受到限制，而且它的通用性很小。 H.323 没有提供即时电子消息的功能。

会话发起协议 (SIP)：
SIP 是会话层协议。它的设计是标准设计。 Sip 比 H.323 更健康，而且比 H.323 更通用。 Sip 提供即时电子消息传递的能力。

我们来看看H.323和SIP的区别：

S.NO	H.323	SIP
1.	H.323 is monolithic architecture.	SIP is modular architecture.
2.	The scalability of H.323 is limited.	SIP is better scalable.
3.	H.323 is a little bit flexible.	It is more flexible.
4.	H.323 does not provide the facility of instant messaging.	SIP provides the facility of instant messaging.
5.	H.323 is absolute complex in terms of complexity.	It is moderate complex in terms of complexity.
6.	The message format of H.323 is in binary form.	While the message format of sip is in ASCII format.
7.	It is not compatible with internet.	While it is compatible with internet.
8.	H.323 is built entirely on telephone systems.	While SIP completely depends on internet connection.