Cisco Cisco Expressway

 

             IN = Internet routing

 

                 NAPTR = record type

 

                        10 = order value (use lowest order value first)

 

                            100 = preference value if multiple entries have the same

 

 

 

 

                      order value

 

                                 "u" = the result is a routable URI

 

                                      "E2U+sip" to make SIP call

 

 

 

 

                          "E2U+h323" to make h.323 call

 

                                                  Regular expression:

 

                                                  ! = delimiter

 

 

 

 

                           replace ‘from start to end’

 

                                                  with name@domain

 

                                                  usual Regex expressions can be used

 

                                                  . NAPTR replace field not used

ENUM Dialing on Cisco Expressway Deployment Guide (X8.2)     

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Configuring NAPTR on a DNS server