[Serusers] Asterisk Registering with SER question

[Ryan Pagquil]

Hi,
	I've been registering asterisk to ser. I'm using SER as the outbound 
SIP trunk for Asterisk. Users registered with Asterisk will use the 
SIP trunk to reach SER registered users and PSTN's. Now when I 
register Asterisk with SER, on my SER's location table I see these record:

Username Column = asterisk
Contact Column = sip:s at 202.84.24.47

I have a script running that checks the accounting records and sends 
BYE for the username that has no credit left. I found it hard doing 
this because of the record on the Contact column on location table of 
SER, everytime asterisk registers with SER. I could not send BYE to 
asterisk because of the broken contact information on Contact column 
of SER's location table. How can I correct this?

Here is my sip.conf configuration:

[general]
port = 5060
bindaddr = x.x.x.x
context = sip
disallow=all
allow=ulaw
allow=alow
fromuser=asterisk
secret=test123
realm=mydomain.com
register=>asterisk:test123 at mydomain.com

Thanks in advance,
Ryan