Unable to join audio using 'Call over Internet' option on Verizon network from My iPhone.
Unable to join Webex audio on my iPhone using the Verizon service.
How do I enable 'Voice over LTE (VoLTE)' on my iPhone or iPad?
How do I enable LTE on my iOS device?
You may make wideband, high-quality phone calls (VoIP) with Voice over LTE (VoLTE) on your iPhone 6 or later.
Note: Some carriers support VoLTE only in certain cities or area codes. Contact your carrier to ask about your area and account.
To Turn on VoLTE:
- Go to Settings.
- Tap on Cellular.
- Tap on Enable LTA.
- Tap on Voice & Data: