Dual Sim dedicate 1 to calls & texts & the other for data only ??

[#1]

As per title
Say Sim 1 is Voda for voice & texts
Sim 2 is MobiData or 3 for Data only as & when needed

[#2]

it would depend on the phone and its operating abilities, without looking at the manual I couldn't say it was possible, although some are marketed as being capable of just such a thing .....

[#3]

If @torpic is actually referring to a dual sim phone I been using them for several years, on my 3rd handset. Only one sim will work at the higher data rates and this sim will be the default for MMS and video calls. The other sim will use the lower rates. The first 2 handsets the SIM had to be in a particular slots for selection of the higher rates. The current handset I can select through the setup menu.

[#4]

It is most likely going to be the Huawei Y330 I posted about in a different thread including the usermanual.pdf linked with a load of FCC information, which atm goes over my head untill I get time to read & absorb
To save you looking for the links
They are all in one place
https://apps.fcc.gov/oetcf/eas/reports/ViewExhibitReport.cfm?mode=Exhibits&RequestTimeout=500&called...
The User Manual states

Quote

Dual-card management Go to and touch SIM card management to enable or disable your SIM cards. You can enable the two SIM cards simultaneously. Touch Data connection to set the default SIM card for your data service.