AudioCodes Mediant 800B - Figure 5-17: Cabling PRI Ports for PSTN Fallback

Hardware Installation Manual 44 Document #: LTRT-10689
Mediant 800
 To connect the PRI ports for PSTN Fallback:
1. Connect one of the PRI ports to the PBX.
2. Connect the second PRI port to the PSTN.
Figure 5-17: Cabling PRI Ports for PSTN Fallback
Note: It does not matter which PRI port connects to which Tel entity (i.e., PBX or PSTN).