Sip trunk without knowing username and password

Hi there
I am trying to create trunk with Huawei exchange. I already had successful experience of creating sip trunk between two asterisk servers where i know username and pass at both ends… now in creating trunk with huwaei exchange i dont have information of username and password of huwaei end. is it possible to create sip trunk??
If yes than how would the registration string would look like…
Many thanks

No, it is not possible to configure your registration without having the registration details from your provider.

Contact them and ask them for the details.

actually you ca… just replace hostname=dynamic with hostname=ip address of the remote

You can’t register to a dynamic host; it must already be static.

I will check again with exchange