[CO Line Call Answered by the VPS, Transferred to Extension at Other PBX (ExtensionNumber Method)]
PBX-1
TIE Line Network

Private network

PBX-2
Outside Caller
PBX-3
PBX-4
PBX-5
PBX-6
PBX-7
Telephone Company
Hello.
Please enter
extension number.
VPS
PBX-8
Extn.
201
Extn.
202
Extn.
101
Mailbox 101
Mailbox 201
Mailbox 202
[Explanation]
A CO line call is answered by the AA service of the VPS. The caller enters extension number 201, so the call
is transferred over the private network to extension 201.
If extension 201 does not answer, mailbox 201 in the VPS will answer it and play the appropriate message.
[CO Line Call to an Extension Not Answered, Forwarded to Mailbox (Extension NumberMethod)]
PBX-1
TIE Line Network

Private network

PBX-2
Outside Caller
PBX-3
PBX-4
PBX-5
PBX-6
PBX-7
Telephone Company
Extn. 201
Fwd to VPS
PBX-8
Extn.
101
Extn.
202
VPS
Mailbox 101
Mailbox 201
Mailbox 202
Mailbox 201:
"Hello. I am not at
my desk right now."
Document Version 2008-11 Feature Manual 243
13.1.14 Private Network Features—Centralized Voice Mail