I recently paid for the VOIPo service. They sent my adapter and I plugged it into my router, went to Softphone/BYOD tab, enabled Softphone.

I then put the credentials into Account 1 of my Grandstream Device Configuration portal, but I can't figure out how to get it to register correctly.

Under Status Tab:
Registered: Account 1 Not Registered
Account 2 Not Registered
Account 3 Not Registered
Account 4 Not Registered

Under Account 1 Tab:
Account Name: VOIPo (e.g., MyCompany)
SIP Server: sip.voipwelcome.com (e.g., sip.mycompany.com, or IP address)
Outbound Proxy: (e.g., proxy.myprovider.com, or IP address)
SIP User ID: 9197415016 (the user part of an SIP address)
Authenticate ID: 9197415016 (can be same or different from SIP UserID)
Authenticate Password: *Entered correctly but I'm not displaying it.* (not displayed for security protection)

SIP Registration is marked YES

Any help would be greatly appreciated and I have a lot more info that I can share, but I'm not sure what's relevant.
Thanks in advance!