Be aware of scammers impersonating as IMDA officers and report any suspicious calls to the police. Please note that IMDA officers will never call you nor request for your personal information. For scam-related advice, please call the Anti-Scam helpline at 1800-722-6688 or go to www.scamalert.sg.

IP Telephony Framework

More details related to the Framework Governing Interconnection Between IP Telephony Operators and Existing Public Switch Telephone Network Operators can be found in IMDA's Decision and Explanatory Memorandum for the Proposed Regulatory Framework for Telephony Services Over Wireless Broadband Access Networks and International Framework on Telephone Services. These documents provide a comprehensive overview of the regulatory framework governing telephony services in Singapore, including IMDA regulations related to the interconnection between IP telephony and public switch telephone network operators.

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LAST UPDATED: 05 MAY 2023