Matrix Telecom ETERNITY NE - Closed User Group (CUG)

752 Matrix ETERNITY NE System Manual
Closed User Group (CUG)
A Closed User Group is a network of PBXs to provide seamless connectivity. The PBXs connected in the network
behave as a single unit. Extension users of one PBX can reach the extension users of the other PBX without dialing
any access code, as if they were dialing extension numbers of their own PBX.
You can connect SARVAM UCS and other PBXs over Analog trunks as well as over the IP Network.
How it works
Let us understand this application with the help of this illustration:
• Say, SARVAM UCS is installed at Location A and is networked with PBX A at Location B.
• To create a CUG over Analog Trunks,
• the CO port (FXO) of SARVAM UCS is connected to the SLT (FXS) port of PBX A.
• the CO port (FXO) of PBX A is connected to a SLT(FXS) port of SARVAM UCS.
• To create a CUG over IP Network, both SARVAM UCS and PBX A may be connected directly to the
Public network, in Peer-to-Peer mode.
• The Extension Numbers of SARVAM UCS and PBX A must be unique.
• Closed User Group (CUG) must be enabled in the Class of Service assigned to the extension users of
SARVAM UCS.
• Seamless connectivity can be provided to the extension users at both locations with suitable configuration
of SARVAM UCS and PBX A.
• At Location A, you need to configure the Closed User Group Table in SARVAM UCS.
The CUG Table stores up to 32 entries. You must configure the following parameters in the table:
• Route Code: The Route Code is the truncated number string for the extension numbers of the other
PBX. The truncated number string must start with the starting digit of the extension numbers. In case,
all extension numbers of PBX A start with ‘3’, then you can configure the Route Code as a single digit,
‘3’.
• Strip Digit Count: Keep the Strip Digit Count as ‘0’.
• Self Route: Keep the Self Route check box disabled.
• Dialed Digit Count: This is the digit length of the extension numbers of PBX A
123
. Configure the Dialed
Digit Count as ‘3’.
•LCR: This parameter is not relevant for this application.
• Route using Trunks: This is the number of the Tie Trunk that the system should use for routing the
dialed number string that matches with the Route Code and Dialed Digit Count.
123. When digits are dialed on a trunk, the system waits for the Inter Digit Wait Timer after the last digit is dialed. The Dialed Digit Count
helps avoid the delay caused by the Inter Digit Wait Timer. When you configure the digit length, the system will match the dialed
number string with the digit length you have configured and will route the number without waiting for the Inter Digit Wait Timer, if a
match is found.