[Serusers] SER as Stateful UA

[Steven Kokinos]

Hello-

I am trying to implement a SER configuration where I only have PSTN 
connectivity via another SIP proxy which I must log into as a user 
agent. Is there any way that SER can act as a UA in this situation so I 
can register with the remote server (passing authentication 
credentials, etc.) then maintain the connection to provide for both 
outbound and inbound calls as necessary from the users on my system?

Regards,

-Steve