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RFC 5806, "Diversion Indication in SIP", March 2010

See Also: RFC 5806 w/ inline errata

Errata ID: 3083
Status: Verified
Type: Technical
Publication Format(s) : TEXT

Reported By: Marianne Mohali
Date Reported: 2012-01-05
Verifier Name: Nevil Brownlee
Date Verified: 2012-04-10

Section 9.1 says:

9.1 Mapping ISUP/ISDN Diversion Reason Codes

It should say:

9.1 Mapping ISUP/ISDN Diversion Reason Codes

ISUP defines the following diversion reasons:
0001 = User busy
0010 = no reply
0011 = unconditional
0100 = deflection during alerting
0101 = deflection immediate response
0110 = mobile subscriber not reachable
0000 = Unknown

Mapping between ISUP reason codes and Diversion reason codes is
performed as follows:
ISUP reason code      Diversion reason code
0001                  "user-busy"
0010                  "no-answer"
0011                  "unconditional"
0100 or 0101          "deflection"
0110                  "unavailable"
0000                  all others
all others            "unknown"


Section 9.1 mentions mapping with ISUP and ISDN but mapping with ISUP is missing. Indeed ISDN and ISUP reason parameter values are different.
This errata adds the ISUP mapping.

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