Does Telnyx have a STUN server? Yes. If you need to leverage a STUN server you can do so by using stun.telnyx.com. You can also check out our blog article about the dangers of Network Address Translation (NAT) and VoIP.For more details, see sip.telnyx.com. Can't find what you're looking for? Click the chat bubble at your lower right hand corner and start a chat!