One Chunnel GSM VoIP Gateway
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If H.235 Authentication is required, enable this field and fill in the values as provided.
3.4.1.3 Advance Settings
Click “Advance Settings” to access additional H.323 parameters as shown below.
A） RAS Port
RAS Port is an unreliable channel which is used to convey the registration,
admissions, bandwidth change, and status messages between two H.323 entities.
B） Q.931 Port （ Call Signaling Port ）
Call Signaling Port is a reliable channel which is used to convey the call setup and
release messages between two H.323 endpoints.
C） H.245 Port （ Media Control Ports ）
Media control port is the port or port range used by the H.245 media control protocol
.
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