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SMG Digital Gateway
3.1.7.4.2
H.323 protocol settings tab
Device ID (H323 alias)
— gateway name during registration at the Gatekeeper.
Fast start
— when checked, fast start function is enabled, otherwise it is disabled. When option is
used, session description for media channel establishing is performed via Н.225 protocol,
otherwise via H.245 protocol.
H245-tunnel
— when checked, H.245 signaling tunneling is enabled through the Q.931 signal
channel, otherwise it is disabled.
DSCP for signaling
— service (DSCP) type for SIP signaling traffic (H.323).
The DSCP setting for RTP and DSCP setting for SIP will be ignored while using VLAN for RTP
transmission and signalling. Class of Service VLAN is used for prioritization in this case.
Number prefixes (Prefix 1, Prefix 2, Prefix 3)
– numbers, which SMG register on a Gatekeeper
according to settings – local or remote. The table is filled with the numbers or initial digits of
numbers of SIP subscribers registered on SMG in order to gatekeeper could forward calls to SMG
(for example, it is sufficient to write prefix 10010 for subscribers with numbers 100101 and
100102).