Altigen Altiware OE 4.5 System Administration & Installation Manual page 195

Configuring the Triton T1/PRI Board
Setting the ISDN PRI Switch Mode
If you select a Span Type of Regular ISDN PRI or Custom ISDN PRI in the
T1/PRI Configuration Window, use the following guidelines to set the
ISDN PRI Switch mode.
Figure 12. ISDN PRI Switch Mode
The top four settings are used for a connection to a CO switch:
• AT&T 4ESS PRI
• AT&T 5ESS PRI
• NT DMS-100 PRI
• NI-2 PRI (default)
The bottom four settings are used for a PRI tie trunk configuration where
two AltiServ systems are connected back to back. In such a configuration,
one AltiServ system must be configured as Network and the other as User.
For example, set one to US NI-2 PRI Network and the other to US NI-2
PRI.
• AT&T 4ESS PRI Network
• AT&T 5ESS PRI Network
• NT DMS-100 PRI Network
• NI-2 PRI Network
166 AltiWare OE System Installation & Administration Manual