IMS APN in 2G (GSM)

1

Whether IMS work in 2G GSM ?

2

Hello!
Do you mean that is IMS equipment related to GSM (BSC, BTS) equipment?
Indirectly, IMS works when switching a call from VoLTE to GSM - SRVCC to GERAN Handover.

3

Hello ,
My device is Connected on 2G .
if I trigger IMS Apn will It connect to Network?