“Unknown phone dialed ***” Switchvox Dial Plan

A user picks up the handset and starts dialing a number. Once three digits are entered, the call gets disconnected before a user is done entering the number.

Switchvox error log show the following message:

Unknown phone dialed 024. If you're using an analog phone, check to see that it has an extension in the Manage Extensions page.

The Fix

On Admin WebUI navigate to: Setup --> Extensions --> Templates --> Modify Template

Then: Phone Settings --> Advanced Phone Options --> SIP Settings --> Override Dial Plan

Here’s a UK based dialplan as an example:

1xx|5xx|999|898|0[1-9]xxxxxxxxx|44[1-9]xxxxxxxxx|00[1-9]xxxxxxxxxx.T
  1. 1xx – 3 digit extension dialing.
  2. 5xx – 3 digit extension dialing.
  3. 999 – dialing 999.
  4. 989 – dialing 989.
  5. 0[1-9]xxxxxxxxx – dialing 0 then a number between 1-9 and exactly 9 other digits for local dialing.
  6. 44[1-9]xxxxxxxxx – dialing 44 then a number between 1-9 and exactly 9 other digits for local dialing.
  7. 00[1-9]xxxxxxxxxx.T – dialing 00 then a number between 1-9 and any 10 digits or more after a time for international calls.

References

http://forums.asterisk.org/viewtopic.php?f=38&t=69534
http://forums.asterisk.org/viewtopic.php?f=38&t=77424

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