UTStarcom UT-300R2U User Manual page 21

Modem Parameters Setting
15
4. Type the username password given by the MTNL
5. Type service name as MTNL . It is optional you can leave it as
blank also.
6. Authentication method "AUTO"
7. Click on next
Following window will come.
8. Enable IGMP Multicast, and enable WAN Service, see the
following.