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After Jio's complaint, Trai directs telcos to allow SMSes for porting under any plan - ET Telecom
Mobile Number Porting: “The Authority, hereby directs all access service providers to enable, with immediate effect, for all mobile subscribers, both prepaid and postpaid, requesting for a unique porting code, the facility to send SMS on short code 1900,” the regulator has said in a two page...
telecom.economictimes.indiatimes.com