E.164 conversion
Telephony
147
Example
The following example explains the “E.164 conversion” function on a terminal
which is operated on an external line with the following configuration:
Various call numbers are now dialled from this terminal:
Attribute
Number
International area code
(Country Code, CC)
32
(Belgium)
Local area code
(National Destination Code, NDC)
2
(Brussels)
Access call number
(Subscriber Number, SN)
4444
(company in Brussels)
Extension or internal call number
(Direct Dialling, DDI)
999
(company extension)
Code for the “External trunk” route
0
Number dialled
Number actually used
0003311234567
(foreign country, Paris)
003311234567
The code for the route is not transmitted via
ISDN / SIP DDI.
00032501234567
(domestic, Bruges)
0501234567
The international area code is replaced with
a “0”.
0003221234567
(domestic, Brussels)
021234567
The international area code is replaced with
a “0”. One's own local area code is not
removed.
0003224444888
(Internal)
888
The international area code, the local area
code and the access call number are
deleted. The destination is called internally
without using the ISDN connector / SIP
trunk.
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