Voice Function Configuration; Configuration Procedure - 3Com MSR 50 Series Configuration Manual

Voice Function
Configuration

Configuration Procedure

modulation and demodulation, fax protocol processing, and IP channel
maintenance.
One-stage dialing and two-stage dialing
■
One-stage dialing and two-stage dialing can well fit in with the situation where
there are differences when various PBXs transmit called numbers to the VoIP
gateway. If a PBX sends the called number to the VoIP gateway, the VoIP adopts
the one-stage dialing to connect the calling user. If the PBX does not send the
called number to the VoIP gateway, the VoIP gateway adopts the two-stage dialing
and plays the prompt tone, instructing the calling user to enter information such
as called number.
Automatic busy tone detection
■
Different PBXs are likely to play different busy tones with different frequency
spectra. Therefore, it is hard to recognize a busy tone feature according to a fixed
threshold. With the smart busy tone identification technology, the VoIP gateway
can sample, calculate, and analyze the busy tone played by the PBX to obtain a set
of parameters reflecting a busy tone feature to the greatest extent. The busy tone
detection can be implemented by configuring these parameters on interfaces.
As the voice functions and objects vary, the voice function configuration includes
four parts: voice subscriber line configuration, voice entity configuration, voice
protocol configuration, and dial plan configuration, as shown in
part implements a type of function. The functions implemented by all these parts
are related.
Figure 648 Voice function configuration
Voice subscriber
Voice entity
line
Figure 649 shows the voice function configuration procedure. For details, see
Table 73.

Voice Function Configuration

Voice function
configuration
Voice protocol
Figure 648. Each
Dial plan
2235