How can I init a single SIP number

Can I init a single SIP number?

I have a device with register with the SIP account, at the first, it can work ,after some time, It can’t be called

but I can’t restart the server, I want only init the SIP account.

Can I?

thanks

Can you please provide more detail? I assume this is an Asterisk question but what SIP device are you using and it is internal or external (NAT) to your network? Is it a hardphone or a soft phone?

thank You

my environment:

Freepbx2.3.0 +Xlite softphone

thats all in my internal network