Setup T19P E2 in the PBX

[macr]

Hello:

I am trying to setup a T19P E2 phone in the Grandrstream 6116 series PBX.
I put the information in the phone, according instructions, when it try to synchronize with the PBX, Register Failed message appears.

I have others phone working, I check the configuration it is similar.

Any idea, ¿What is happening?

Thank you.

[Karl_Yealink]

I find the outbound server is the same as the SIP server, why do you need to enable the outbound server.
Suggest that you can only use the SIP server then test again.

And the phone is T19, not T19 E2. They are different phones.
Can you tell me which phone can register succeed? And please tell me the detail firmware of the normally phones and problatic phones.