We use MC7455 modem.
With sunset of 3G networks, we may need to update devices to use data centric configuration (no voice). My understanding is that if VoLTE is not supported by carriers, LTE data connection will drop due to the voice connection (on 3G) not available, if the modem is not working under data centric mode. Will this be a problem for MC7455?
Is there a way or need to configure MC7455 to work in data centric mode? For example, any AT commands to achieve so or do we need a special PRI file for certain carriers from SWIR?
If carriers support VoLTE, do we need to worry about 3G sunset causing LTE connection to drop?
In data centric mode:
If LTE PS is attached, then connection will remain active even if CS fallback cannot be established. CS voice and SMS will not work when on an LTE only based network, but data will remain connected.
Thanks in advance!