MyPBX Standard Administrator Guide
24
Trunks
External calls can be made through trunks on MyPBX Standard. In this chapter, we
give a simplified guide to the MyPBX Standard users in setting up trunks. We describe
PSTN trunks and BRI trunks configurations and how to configure MyPBX Standard to
work with VoIP Providers.
GSM/UMTS/CDMA Trunks
PSTN Trunks
The public switched telephone network (PSTN) is the network of the world's public
circuit-switched telephone networks.
Go to
PBX→Trunks→ Physical Trunks→Analog Trunk
to edit the PSTN trunks.
Before configuring a PSTN trunk, please make sure that O2 module or SO module are
installed on MyPBX, and an analog line is connected to MyPBX FXO port and PSTN
provider.
Click
to edit the PSTN trunk.
PSTN Trunk Configuration
Please check the PSTN line configuration parameters below.
1) General Settings
Table 6-1 PSTN trunk-General Settings
General Settings
Trunk Name
A unique label used to identify this trunk.
Volume Setting
Set the volume for this trunk. The default is 40%.
2) Hangup Detection
Hangup detection settings help the system to detect if a call is hung up. If you find
the PSTN call could not be disconnected, these settings need to be configured.
Table 6-2 PSTN trunk-Hangup Detection
Hang up Detection
Busy Detection
Busy Detection is used to detect far end hang-up or for
detecting a busy signal. Select
“Yes” to turn this feature on.
Busy Count
If Busy Detection is enabled, it is also possible to specify
how many busy tones to wait for before disconnecting the