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60 TAU-72.IP/TAU-36.IP Universal Network Terminal
–
To assign Caller ID category to the subscriber, use SS7 category (SIP-T) parameter in subscriber
port configuration or subscriber profile. For description of parameters, see Section
–
To receive international calls with '+' symbol preceding the number, you should configure
'User=Phone' option, see Section
5.1.2.2.3 SIP Custom Parameters (Profile
.
5.1.2.2.2
H.323 Protocol
In
'H.323'
submenu, you can configure H.323 protocol settings.
H.323 protocol operation is possible only when Profile 1 is used. Use Profile 1 to configure codecs
and routing when Н.323 protocol is used.
H.323 standard states specifications for audio and video data transmission via data networks and includes
standards for video and voice codecs, public domain applications, call and system management.
H.323 stack of TAU gateway supports the following protocols:
—
H.245
—allows for codec matching and opening of voice connection when faststart procedure is
not used.
—
Q.931/H.225
—allows to establish and control a connection.
—
RAS
—allows for gatekeeper interactions.
—
H.235
—authenticates calls during gatekeeper interactions.
—
Н.450.1
—used during put on/remove from hold.
Gatekeeper
allows for call processing inside its zone and interaction with other zones as well as call
management. During gatekeeper operations, the gateway should register on the gatekeeper and perform
authorization using login and password (Н.235) depending on the local network policy. Only after successful
registration gateway subscribers will be able to perform calls through the gatekeeper. Gateway registers on the
gatekeeper for a limited amount of time—
Time to live
(TTL)—during which it should renew its registration. Keep
alive timer is used for this purpose; upon expiration, the gateway sends a renewal request.
Faststart procedure enables fast establishment of a voice connection. In this case, channel will be
established before the start of capability coordination with H.245 protocol. Tunnelling procedure allows to
transfer H.245 signalling via Q.931 signal channels. As a result, no additional TCP connection (or TCP port) is
required for capability coordination.
You don't have to reboot the gateway in order to apply H.323 settings. When applying settings,
all current calls will be terminated.