(instructions from: https://www.rcn.com/business/assets/pdfs/support/Business-Phone-with-Call-Manager-User-Guide.pdf)

Two different ways to set up your Comcast phones to work with Numa

With the business phone (using Star Codes)


  1. Lift the receiver on your business phone and listen for the dial tone

  2. Dial *63 and enter the call forwarding number assigned to you by Numa

  3. Listen for a confirmation tone, this will indicate that "call forward unavailable" has been successfully activated

  4. Single Phone Line - Online

Online with the RCN web portal


  1. Log into your RCN Business User Call Manager.

  2. Choose Call Manager. Then Forwarding.

  3. Under that, click on Busy/No Answer.

  4. Check Forward Calls if You Do Not Answer, Select "Other", and enter in your business's Numa number.

  5. Check Forward Calls if Your Line is Busy, Select "Other", and enter in your business's Numa number.

How to Confirm It's Working

You can place a test call by going to Settings > Phone numbers > Test my setup or call your business's phone number from your personal phone. If nobody answers, you should hear your Numa Voicemail greeting.


Make sure you don't have an answering machine picking up your calls before they get forwarded.

If your business's phone line is part of a hunt group (multiple lines that ring until one is answered), you may need to set up forwarding on all the lines involved. Alternatively, you could remove your business phone line from the hunt group.

Contact your phone provider and have them double check that forwarding was set up properly and is active on your line.

Turn off Call Forwarding

Call Forwarding No Answer: Press *83 then listen for a confirmation tone. OR, log back in to your RCN User Call Manager on the web and uncheck the Call Forwarding Busy/No Answer settings.

No matter what, don't hesitate to contact Numa support! We'll happily work with you and your service provider to get you all set up.

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