Grandstream Networks, Inc. HT503 FXS/FXO Port Analog Telephone Adaptor HT503 User Manual Firmware Version 1.0.1.41 www.grandstream.com [email protected] TABLE OF CONTENTS…
Slide 1 1 ENUM? “ ” Telephone Number Mapping (ENUM or Enum, from TElephone NUmber Mapping) is a suite of protocols to unify the telephone numbering system E.164 with…