snom m9 DECT Administrator Guide
38
Goal
Pattern and Result
To use leading zeros
If a number starts with 9 and has at least 8 further digits, then use
a leading zero.
|^9([0-9]{8})$|sip:09\1@\d
If a number has 2 digits, don’t use a leading zero. When more
than 2 digits, use the leading zero:
|^([0-9]{3,})$|sip:0\1@\d
To separate star (*) codes from
standard numbers
Sometimes a dial plan is needed to add a leading 0 to an out-
going number not starting with 0 (e.g., 3039833104) so that
it will be dialed as 03039833104, but you want to make sure
that if the number were 03039833104, that it’s not converted to
003039833104. When this is the case, you could use the follow-
ing string for this purpose:
|^([1-9]{2})([0-9]{6,})$|sip:0\1\2@\d
But if a star code is followed by a destination, e.g., *7939833452,
it is not desired to convert it to 07939833452 because the PBX
is expected to get the whole string and use it accordingly. Hence,
we can concatenate a plan to the one above to make provision for
such exceptions:
|^\*([0-9]*)$|sip:*\1@\d””|^([1-9]{2})([0-9]
{6,})$|sip:0\1\2@\d
Separated by the exclamation mark, it contains the pattern for the
911 and the resulting SIP URI.
To concatenate dial plans
To concatenate dial plans, just write them one after another
including “” quotes. You will get the following after concatenating
the above two dial plans:
|^9([0-9]{8})$|sip:09\1@\d” “|^([0-9]
{3,})$|sip:0\1@\d
To dial a certain number with
another outgoing identity
|^911|^112|sip:[email protected]|d
Emergency Calling
Dial plans can also be particularly useful for providing emergency calling services (e.g., 911, 112, 999) in VoIP
networks. The following examples indicate how dial plans may be used on the snom m9 to provide emergency
calling services.
www.InternetVoipPhone.co.uk | [email protected] | 0800 088 48 46
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