Converting Accented Characters From Ip To Tel - AudioCodes Mediant 1000B User Manual

User's Manual

26.19 Converting Accented Characters from IP to Tel

The Char Conversion table lets you configure up to 40 Character Conversion rules. A
Character Conversion rule maps (converts) accented characters (Unicode / UTF-8)
received from the IP side into simple ASCII characters (ISO-8859) for sending to the Tel
side (analog or digital). Typically, the device receives the caller ID and calling name in
Unicode characters (in the SIP INVITE message). Unicode characters consist of two bytes,
while ASCII characters consist of one byte. Accented characters are used in various
languages such as German. An example of such a character is the umlaut (or diaeresis),
which consists of two dots placed over a letter, as in ä. The importance of this conversion
feature is that it allows PSTN entities that do not support accented characters, to receive
ASCII characters. For example, the device can convert the Unicode character ä into the
ASCII character "ae".
Note:
When the parameter is set to [0] (Latin only), it converts accented characters into
ASCII (e.g., ä to "a"). However, the table can be used to overwrite these "basic"
conversions and customize them (e.g., ä to "ae" instead of the default "a").
The following procedure describes how to configure Character Conversion rules through
the Web interface. You can also configure it through ini file (CharConversion) or CLI
(configure voip > gw dtmf-and-suppl dtmf-and-dialing > char-conversion).

To configure a Character Conversion rule:
1. Open the Char Conversion table (Configuration tab > VoIP menu > Gateway >
DTMF & Supplementary > Char Conversion).
2. Click Add; the following dialog box appears:
Figure 26-8: Char Conversion Table - Add Row Dialog Box
The figure above shows a configuration example where ä is converted to ae.
3. Configure a Character Conversion rule according to the parameters described in the
table below.
4. Click Add.
Table 26-8: Char Conversion Table Parameter Descriptions
Parameter
Index
Version 7.0
The table works in conjunction with the ISO8859CharacterSet parameter.
Defines an index number for the new table row.
26. Configuring Supplementary Services
Description
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