Voice Data option is not showing

Hello Harshpatel_2711,

This page can help provide some information regarding those settings: View or change cellular data settings on iPhone - Apple Support

Depending on your iPhone model, carrier, and region, the following options may be available:

• Turn Voice Roaming on or off: (CDMA) Turn Voice Roaming off to avoid charges from using other carrier’s networks. When your carrier’s network isn’t available, iPhone won’t have cellular (data or voice) service.

• Enable or disable 4G/LTE: Using 4G or LTE loads internet data faster in some cases but may decrease battery performance. There may be options for turning off 4G/LTE or for selecting Voice & Data (VoLTE) or Data Only.

On iPhone 12 models and later with a 5G data plan, you can do the following:

• Enable Smart Data mode to optimize battery life: Tap Voice & Data, then choose 5G Auto. In this mode, your iPhone automatically switches to LTE when 5G speeds don’t provide noticeably better performance.

• Use higher-quality video and FaceTime HD on 5G networks: Tap Data Mode, then choose Allow More Data on 5G.

You may also try reaching out to your mobile carrier in regards to the cellular data options present.

Cheers.