We have a customer with an Alcatel Lucent OmniPCX PABX and they want to migrate to a 3CX. However they intend doing this in stages until all users are accommodated on the 3CX.
The OmniPCX has 4 x E1 PRI links (2 for incoming, 2 for outgoing traffic). Once all users are are on the 3CX, the E1...