Installation manual

16 20/10/2004 PS10270JENAA01
Network connections
The M6501L/R IP PBX is a business integrated communications system offering both a
telephone service and a synchronous and asynchronous data packet switching service.
It can be connected to the public network, a private network, an X.25 public network, and a LAN
network. Depending on the local exchange used, trunks can be connected to the public switched
telephone network (PSTN) along analogue network lines or using BRI and/or PRI accesses over
an ISDN network.
Tie lines (TL) connect the PBX to private networks.