**Making this to supplement Do we have VoLTE article.**
Environment
Devices - applicable to all
Onomondo Core Network
Question
Can I make a call using Onomondo SIMs?
Answer
No. Onomondo IoT SIMs only allow data and SMS.
Cause
The Onomondo Core Network is built with IoT devices in mind, and therefore has been built with focus on Internet (data) and SMS capabilities. This means that calling features, including VoLTE are not available.