Parameter: SIP: User-to-User encoding
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| − | Encoding for User-to-User header | + | == Encoding options for SIP User-to-User header == |
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| + | === Use hexadecimal encoding format === | ||
| + | Each byte of the UUI is printed as a 2-digits hexadecimal value. This allows encoding any value in the UUI, including non-printable characters. | ||
User-to-User:303030303030312e5468697320697320612074657374205555492076616c7565;encoding=hex;purpose=isdn-interwork;content=isdn-uui | User-to-User:303030303030312e5468697320697320612074657374205555492076616c7565;encoding=hex;purpose=isdn-interwork;content=isdn-uui | ||
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| + | === Use text encoding format === | ||
| + | UUI is stored "as-is" (without any modification) into the SIP header. | ||
| + | |||
| + | '''Careful with the content of the UUI if using this option: it may render the SIP header illegal depending which ASCII characters are found in the UUI.''' | ||
User-to-User:0000001.This is a test UUI value;encoding=text;purpose=isdn-interwork;content=isdn-uui | User-to-User:0000001.This is a test UUI value;encoding=text;purpose=isdn-interwork;content=isdn-uui | ||
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| + | === Use text encoding format with the escape illegal characters option === | ||
| + | UUI is stored in the SIP header without modification (like with the text encoding format). | ||
| + | |||
| + | However, UUI bytes that do not corresponds to a printable ASCII character, or that corrsponds to an ASCII character that can't be used within a SIP header will be escaped. | ||
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| + | Escaping is made by using character % followed by a 2-digits Hexadecimal value. | ||
User-to-User:%00%00%00%00%00%00%03.This is a test UUI value;encoding=text;purpose=isdn-interwork;content=isdn-uui | User-to-User:%00%00%00%00%00%00%03.This is a test UUI value;encoding=text;purpose=isdn-interwork;content=isdn-uui | ||
[[Category:Parameters]] | [[Category:Parameters]] | ||
Revision as of 11:22, 27 November 2013
Contents |
Encoding options for SIP User-to-User header
Use hexadecimal encoding format
Each byte of the UUI is printed as a 2-digits hexadecimal value. This allows encoding any value in the UUI, including non-printable characters.
User-to-User:303030303030312e5468697320697320612074657374205555492076616c7565;encoding=hex;purpose=isdn-interwork;content=isdn-uui
Use text encoding format
UUI is stored "as-is" (without any modification) into the SIP header.
Careful with the content of the UUI if using this option: it may render the SIP header illegal depending which ASCII characters are found in the UUI.
User-to-User:0000001.This is a test UUI value;encoding=text;purpose=isdn-interwork;content=isdn-uui
Use text encoding format with the escape illegal characters option
UUI is stored in the SIP header without modification (like with the text encoding format).
However, UUI bytes that do not corresponds to a printable ASCII character, or that corrsponds to an ASCII character that can't be used within a SIP header will be escaped.
Escaping is made by using character % followed by a 2-digits Hexadecimal value.
User-to-User:%00%00%00%00%00%00%03.This is a test UUI value;encoding=text;purpose=isdn-interwork;content=isdn-uui
