As stated in the SIP Trunk introduction from the authentication point of view there's no difference between encrypted or unencrypted SIP Trunks. We can have authenticated unencrypted trunks as well as encrypted unauthenticated ones. In figure 1. Detail of the SIP Trunk form about the registration you have a magnification of the SIP Trunk form that shows the registration fields. Usually in order to perform the authentication you have two ways:
- SIP Account: you must insert username and password and set the register option on
- IP based: you can leave the username and password fields blank but you have to enable the Qualify option. The HOST parameter is your
need to set the Register option checked on, still you can
Register option
If the trunk is going to be also used for OUTBOUND calls (external calls) you need to be sure that the "Register" checkbox is checked. In this case the "Name" and "Secret" fields are mandatory as well. Otherwise you can uncheck the "Register" checkbox so the above fields will become optional.
Fill out the fields accordingly to the guidelines above and when you are done click on the "Update" icon at the bottom of the page.
You can get back to the "Sip Trunk List" page where the Sip Trunk table is now filled based on your settings ($text.replaceAll("]*>"," ").replaceAll("\s*\z","")).
A notification will inform you about the progress of the operation. The number shown in the notification is an internal identifier in the database and thus can be ignored.
To check the entered data of the SIP Trunk click on the "Host" value into the table (for example in this case you should click on "10.0.0.101"). This will open again the Edit Sip Trunk page with the previously entered data.