Converting Accented Characters From Ip To Tel - AudioCodes Mediant 800 User Manual

CHAPTER 28 Configuring Supplementary Services
● 'Forward on No Reason Digit Pattern Internal' (DigitPatternForwardNoReason): Defines
the digit pattern to indicate 'call forward with no reason' when the original call is received
from an internal extension.
● 'Forward on Busy Digit Pattern External' (DigitPatternForwardOnBusyExt): Defines the
digit pattern to indicate 'call forward on busy' when the original call is received from an
external line.
● 'Forward on No Answer Digit Pattern External' (DigitPatternForwardOnNoAnswerExt):
Defines the digit pattern to indicate 'call forward on no answer' when the original call is
received from an external line.
● 'Forward on Do Not Disturb Digit Pattern External' (DigitPatternForwardOnDNDExt):
Defines the digit pattern to indicate 'call forward on do not disturb' when the original call is
received from an external line.
● 'Forward on No Reason Digit Pattern External' (DigitPatternForwardNoReasonExt):
Defines the digit pattern to indicate 'call forward with no reason' when the original call is
received from an external line.
● 'Internal Call Digit Pattern' (DigitPatternInternalCall): Defines the digit pattern to indicate
an internal call.
● 'External Call Digit Pattern' (DigitPatternExternalCall): Defines the digit pattern to indicate
an external call.
● 'Disconnect Call Digit Pattern' (TelDisconnectCode): Defines a digit pattern that when
received from the Tel side indicates the device to disconnect the call.
● 'Digit To Ignore Digit Pattern' (DigitPatternDigitToIgnore): Defines a digit pattern that if
received as Src (S) or Redirect (R) numbers is ignored and not added to that number.
6. Click Apply.

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. 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 Tel 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".
The table works in conjunction with the ISO8859CharacterSet parameter. 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 >
gateway dtmf-supp-service dtmf-and-dialing > char-conversion).
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To configure a Character Conversion rule:
1. Open the Char Conversion table (Setup menu > Signaling & Media tab > Gateway folder >
DTMF & Supplementary > Char Conversion).
2. Click New; the following dialog box appears:
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