DLT registration with your telecom provider is required before these numbers can
be used for outbound calling in India.
Purchase 140 & 160-series Numbers
India-specific DLT-registered number classes
140-series and 160-series numbers are DLT-registered categories required for
commercial voice traffic in India (promotional and transactional, respectively).
Contact your telephony provider (Plivo/Twilio) support to complete DLT registration,
then assign the number to an agent as usual.

