Why don't I get a tone to record my greeting?

Press Menu/Select button while phone is not in use.
Press Menuu/Select button to choose Ans System.
Press arrow up or arrow down to choose Ans System Setup, press Menu/Select button.
Press arrow up or arrow down to choose Announcement, press Menu/Select button.
You will hear the prompt "To play press 2, to record press 7. Press 7.
You will hear the prompt "Record after the tone, press 5 when you are done".
You will hear a tone, record your greeting, speaking toward the microphone. Press 5 to end recording.
Your new greeting will be played back automatically, press 5 to end replay, press 2 to start replay again, or press 7 to record again.
Minimum message length- 2 sec
Maximum message length- 90 sec

Below is a link where you can download a copy of the User manual.
http://safemanuals.com/user-guide-instructions-owner-manual/VTECH/CS6229-3-Pre_E

How To Change Your Personal Greeting:
1. Press the Check Voicemail key or press the Feature button, then 981
2. Enter your password
3. Press the ADMIN softkey
4. Press the GREET softkey
5. Press the REC softkey
6. Press the PRIME softkey
7. Press the YES softkey
8. At the tone, record your new greeting, press the OK softkey to end your recording and then the OK softkey again to accept the new recording
How To Record Your Alternate Greeting (Used when on vacation or out of the office.:1. Press the Check Voicemail key or press the Feature button, then 981
2. Enter your password
3. Press the ADMIN softkey
4. Press the GREET softkey
5. Pres the REC softkey
6. Press the ALT softkey
7. Press the YES softkey
8. At the tone, record your new greeting, press the OK softkey to end your recording, then the OK softkey again to accept the new recording.
9. You then need to have your voicemail box now play the Alternate Greeting, Press the GREET softkey
10. Press the Choose softkey
11. Press ALT softkey
12. Display will show: "Accept msgs: Y", Press the OK softkey to have your voicemail box accept messages while your Alternate Greeting is turned on, or press the CHNG softkey to change the "Y" to an "N" if you do not want your voicemail box to accept messages.
13. When you return to the office, make sure you go back into your voicemail box and have it play the PRIME greeting.

With the phone in standby mode, press and hold the [greeting] key. You will hear the announcement "Record greeting" and a confirmation tone. "--" flashes on the message counter.
Start record your message. You have thirty seconds, and the message counter counts down.
When finished, press [greeting]. You'll hear a confirmation tone, and then your greeting plays back.

The above is from the "Recording a personal outgoing message" section of the manual (page 36 in my copy). If you need a manual, you can download one here.

Hi,
You will need to remove the old message. There SHOULD be prompts. IF NOT try going to a very quiet room and hit record but do not say or make noise and this will record silence over the old and new message. Then attempt to retry.
ALSO - look for a 'reset' button and remove all batteries if you have power outage back up batteries.
Unplug the phone - and try again.
Here are the instructions from the manual:
To Change Your Personal Greeting:
1. Press the Check Voicemail key or press the Feature button, then 981
2. Enter your password
3. Press the ADMIN softkey
4. Press the GREET softkey
5. Press the REC softkey
6. Press the PRIME softkey
7. Press the YES softkey
8. At the tone, record your new greeting, press the OK softkey to end your recording and then the OK softkey again to accept the new recording

Best of it
Gary @ Fix Ya

With the phone in standby, press [greet]. While the preset message is playing, press and hold [greet] again. You will hear the announcement "Record greeting" and a confirmation tone.
If you already have a greeting recorded, you can delete the current one and then record a new greeting. While the current greeting is playing, press (delete). And then start over with the first.
Start recording your message. You will have thirty seconds, and the message counter will count down.
When you are finished recording your greeting, press [greet], (play/stop) or [set]. You hear a confirmation tone, and then your greeting plays back for you.
The full instructions begin on page 45 of the manual.

Press Menu/Select button while phone is not in use.
Press Menuu/Select button to choose Ans System.
Press arrow up or arrow down to choose Ans System Setup, press Menu/Select button.
Press arrow up or arrow down to choose Announcement, press Menu/Select button.
You will hear the prompt "To play press 2, to record press 7. Press 7.
You will hear the prompt "Record after the tone, press 5 when you are done".
You will hear a tone, record your greeting, speaking toward the microphone. Press 5 to end recording.
Your new greeting will be played back automatically, press 5 to end replay, press 2 to start replay again, or press 7 to record again.
Minimum message length- 2 sec
Maximum message length- 90 sec

Below is a link where you can download a copy of the User manual.
http://safemanuals.com/user-guide-instructions-owner-manual/VTECH/CS6229-3-Pre_E

Press and hold greeting button & after you hear record greeting and a conformation tone then you say whatever you want for a message. It could be as simply as "You know what to do after the Beep". After saying your message press (but do not hold it down) the greeting button to hear your new message.

Recording a Personal Greeting
Your answering system comes with a pre-recorded outgoing message or greeting that plays when you receive a call: “Hello, no one is available to take your call. Please leave a message after the tone.”
You can record your own personal outgoing greeting. Your recorded greeting must be between two seconds and thirty seconds long.

1. Press /mute. The system announces the number of new and old messages, then starts to play themessages unless it has no messages.
2. Press 5 to stop the announcements or message playback. You will hear intermittent beeps indicating that thesystem is in the command waiting mode.
3. Press 8 to start the recording. The system announces, “Record greeting.” Begin recording after the announcement.
4. When you finish recording, press 8 again or press 5. You will hear a confirmation tone, and your recordedgreeting plays back for you.
   

Selecting a Greeting
Once you have recorded a personal greeting, the phone automatically switches to your personal greeting. You can also switch back and forth between the pre-recorded greeting and your own greeting at any time.

1. Press the Message icon (letter)/mute. The system announces the number of new and old messages, then starts to play the messages unless it has no messages.
2. Press 5 to stop the announcements or message playback. You will hear intermittent beeps indicating that the system is in the command waiting mode.
3. Press 6. The system plays the current greeting.

To change the greeting you need to either pick up the phone or press speaker phone then dial *38 then 1 then you will hear a beep/call tone. When you hear that tone record your message/greeting. Once you are finished press the auto dial/store button. If your are satisfied with that message hang up or press speaker phone again to end the call. If you would like to clear the message, then right after you hit auto dial/store you will hear a beep/call tone press 0 to clear or 1 to rerecord.