[Help] sipml5 demo wont register

[Spencer Scott]

Hello Friends, I am trying to build a webRTC softphone in our chrome extension but I can not seem to get sipML5 demo to register to the PBX. 

I want the demo to register so I know I have a proof of concept before I have my dev team (who doesn't know SIP) start working on it. 

I have a feeling I am missing something SUPER easy. 

Here is the info I am getting from my PBX

Domain/Proxy: loup 

Outbound Proxy: sebeta18.pbx.com:5060 

Username: 1000 

Password: *********

Here is the info I put into the demo

Display Name: test
Private Identity*: 1000
Public Identity*: sip:100@loup
Password: *********
Realm*: sebeta18.pbx.com:5060

Expert Mode

Enable RTCWeb Breaker: ✔️

SIP outbound Proxy URL: udp://sebeta18.pbx.com:5060

Everything appears to be right but for some reason, I can not get sipML5 to register. 

Am I missing something?

Would LOVE any and all help.