How do I retrieve messages left in the operator's voice mail?

Press program 996 to find extension numbers

The KX-T7453 isn't a voicemail system. Please refer to the documentation for whatever voicemail system you have connected.

Pretty much, it depends on what happens when you dial 165. That's the voice mail access number for a Panasonic TD phone system with Pana VM. If you get the voice mail lady, set the box up and then from the intercom dial 7102/3/4/5 where 2 is all/3 is busy, 4 is no answer and 5 is busy/no answer and 165 or whatever the VM access number is and possibly # (I forget if it's required). That will light the FWD/DND light and send calls to the voice mail system.

Carl

True, it's not in the "handbook" because it's in the subcriber's guide to whatever voice mail system you have. Try looking for it, but in the meantime, dial 165 and see what happens. If it's a Panasonic brand TVx box, it should answer and either ask for a passoword or you'll be listening to messages.

The owner of the voice mail system, called the message manager, will have the password for mailbox 998. That's where general delivery messages get left sometimes. The system owner has the password for mailbox 999. That's the administrator's mailbox and it lets you change passwords and set up the dial by name directory.

Carl

Press the MESSAGE button. It will light the lamp on the receiving station and when they press MESSAGE it will show that you called.

If you're trying to program "voice mail", then there are specific instructions to setting Call Forward No Answer or just dialing into the VM sytsem and dialing #6 and their extension to leave a direct message.

Carl

If you have a Panasonic brand voice mail, you press #6 * and your extension, then the password.

Carl

If there is a voice mail button on the other set/s, press it, then [#][6], then [*] and your mailbox number.
If there is no button, press [intercom] 165, [#][6], [*] and your maibox number.
Note that 165 is a common voice mail extention number, but it may vary from site to site.

Do you mean have calls transferred to voice mail? Go into system programming and change 408 (DIL 1:1 Nite) to point to the ext of the voice mail port, which depends on your system. That number is found in 118

When you call in from the outside wait for auto attendant to answer. As soon as the "Thank you for calling" starts, press [*], and your mailbox number. If that does not work you may need to put a [#], 165 before the [*], mail box. This is assuming that most voice mail and auto attendant settings are operational and you have a Panasonic KX-TVS voice mail.
If a live person (not to be confused with the living dead) answers, have them transfer you to voice mail and do the whole [#], 165, [*], your mail box thing.

The voice mail turns the message waiting light on and off. The voice mail is a separate part from your phone system. Usually this is a standard setting at default for each extension but most voice mails will allow you to turn it off. Any way you look at it, this would be a system programming issue. You will need to either pay a company to make the change or you need to know which Panasonic system (and voice mail) you have and obtain system "programming" manuals. (not user guides)