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

Source of RFC: INDEPENDENT

Errata ID: 3083
Status: Verified
Type: Technical

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"

Notes:

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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