Intercom on Panasonic DECT Cordless Phone

If you have a Panasonic DECT cordless phone set and at some point you would like to perform intercom (interior calls between handsets), you may find that the user manual/guide doesn’t include any information regarding such topic, while your receptors don’t have any intuitive INT or CONF buttons directly available. Moreover, it may be hard to find any related information on Google or on other search engines, either because it is completely missing from the whole Internet or because you cannot find good keywords to submit as search requests.

I have found how to perform intercom on my own phone set (probably model KX-TG6412FXS) by manually testing different key combinations. Here is how I do it (maybe it would help somebody else, sometime):

  • Press the menu button, i.e. the middle black button from the bottom of the screen;
  • Do not press the list selector button (i.e. the “menu” button) again, press the first button instead, i.e. the left-most black button from the bottom of the screen;
  • A text like “Interior[1]” would be displayed, indicating the current receptor, i.e. 1;
  • Type the number of the receptor that you want to call, for example, 2, in a dual system; the number of the receptor is different than the one indicated on screen, which is the number of the current receptor;
  • The interior call should immediately begin, i.e. the other receptor would start ringing a special “intercom” sound, and you can answer the call as it would be a standard call.

About Sorin Dolha

My passion is software development, but I also like physics.
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13 Responses to Intercom on Panasonic DECT Cordless Phone

  1. Thanks for instructions. It solved the problem. Panasonic manual was not that helpful, but your topic was.

  2. mark says:

    Unfortunately as per Panasonic customer support, it’s not possible to have it ring multiple phones at once so if you don’t know where the person is, there isn’t an easy way to ring all phones at the same time.

  3. Ulli says:

    Thanks, Sorin, that was most helpful!

  4. Leo says:

    Thanks Sorin, that’s been very helpful to me.

    Another problem I have with intercom is it cuts off after 2 minutes and I can find no way to extend it. Do you know if this can be changed?

    Any help will be gratefully received.

    • Sorin Dolha says:

      Actually I didn’t have any long local conversations. But still, I think there were some longer than 2 minutes, but haven’t been cut off. Therefore, I’m sorry, but I can’t help you with that issue. (Maybe you have a different phone model?)

  5. Aheng says:

    This post is great!

  6. Bipin says:

    How do I find the receptor number though? I tried pressing every number. Where is the receptor number written?

    • Sorin Dolha says:

      The numbers start from 1 to how many receptors you have. The current receptor number is shown when you get to the call menu as described in the article. You may dial others, but of course, not the current one.

  7. Julia says:

    Thank you so much! I could never figure out how to use the intercom on these phones!

  8. Anonymous Whistle-Blower says:

    So I have a Panasonic cordless system, and I was wondering if there’s a way to change the intercom’s ring. I HATE the preset ring, it’s very annoying and I want something else. How would I go about doing this? I’ve been looking all over but can’t figure it out. Any suggestions?

  9. Sean Kearney says:


  10. Anthony Ives says:

    Great explanation 😊 Just needed to adjust the aerial in the loft which was made easier by being given real time feedback from viewer ! Thanks for taking the time to put up

  11. Ariel says:

    My cordless Panasonic seems to be making 2 calls at the same time to the same number. I hear the person who answered and also a busy tone or an answering machine.

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