Using the sketch provided in this chapter, write a script to send PSTN calls to a PSTN Gateway. You can use phpMyAdmin, or the MySQL command line to insert data on the database.

Step 1—Add the gateway address in the trusted table using SerMyAdmin:

If desired or convenient, you can instead use the MySQL command line interface to achieve the same result.

#mysql –u openser –p
-- enter your mysql password --
mysql> use openser;
mysql> INSERT INTO trusted ( src_ip, proto, from_pattern ) VALUES ( '10.1.30.22', 'any', '^sip:.*$');

The records above tell the OpenSER script to allow requests coming from the IP address 10.1.30.22 with any transport protocol, matching the regular expression ^sip:.*$. You can use the following command if you don't want to reload OpenSER.

#openserctl fifo trusted_reload

Step 2—Include your served domains in the domain table (if you have not done before).

openserctl domain add sermyadmin.org 

You can also use SerMyAdmin to do...