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Findings
ENUM really can use for SIP routing
Incompatibility of Regular Expression interpretation
Sensitive especially wildcard substitution
* IN NAPTR … “!^\+*(.*)$!sip:+\1@sip.2ld.tld!” .
AUS: +12345678
Results: sip:+12345678@sip.2ld.tld SER
sip:++12345678@sip.2ld.tld ENUM Client
Multiple ENUM tree
e164.arpa and apenum.org
Connection from SIP server to MGW
Authentication mechanism is different by each
Wireless Operation
Power save mode, Handover, and RTP communication within the same AP

Those will be documented in I-D
PPT Version