H.323 & SIP…Side by Side

S I P & H.3 2 3: C O M P A R I S O N

• Comparable functionality achieved with different mechanisms

• Similar QoS support

• SIP more flexible and scaleable

• H.323 better interoperability and network management (admissions/policy control)

• H.323 better because of SIP and visa versa!!

• Differences diminishing with each new version

Source: RADVISION

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