Is this possible at all to get Diversion information from the call coming from ISDN over ZAP/DAHDI?
Here is the log from a diverted ISDN call:
< TEI: 0 State 7(Multi-frame established)
< V(A)=59, V(S)=59, V®=113
< K=7, RC=0, l3initiated=0, reject_except=0, ack_pend=0
< T200_id=0, N200=3, T203_id=1
< Informational frame:
< SAPI: 00 C/R: 1 EA: 0
< TEI: 000 EA: 1
< N(S): 113 0: 0
< N®: 059 P: 0
< 45 bytes of data
< Protocol Discriminator: Q.931 (8) len=45
< TEI=0 Call Ref: len= 2 (reference 20170/0x4ECA) (Sent from originator)
< Message Type: SETUP (5)
< Sending Complete (len= 1)
< Bearer Capability (len= 5) [ Ext: 1 Q.931 Std: 0 Info transfer capability: Speech (0)
< Ext: 1 Trans mode/rate: 64kbps, circuit-mode (16)
< User information layer 1: A-Law (35)
< Channel ID (len= 5) [ Ext: 1 IntID: Implicit Other(PRI) Spare: 0 Preferred Dchan: 0
< ChanSel: As indicated in following octets
< Ext: 1 Coding: 0 Number Specified Channel Type: 3
< Ext: 1 Channel: 11 Type: CPE]
< Calling Number (len=13) [ Ext: 0 TON: National Number (2) NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)
< Presentation: Presentation allowed of network provided number (3) ‘526691185’ ]
< Called Number (len=12) [ Ext: 1 TON: National Number (2) NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1) ‘722162230’ ]
< IE: High-layer Compatibility (len = 4)
Caller 526691185 dialed 0506580680 and was diverted to 722162230.
According to any RFCs, does PRI send along any diversion information?