I had to change the following instructions to migrate the script openser.chapter10-2 to the version 1.3.1. After the changes I tested a call from two phones and two phones behind NAT. It worked fine, but I did not test the script thoroughly, so it is possible that you find a few issues.
Step 1: Migrate the gw table in the database (according to the web page cited above). The old table will be dropped.
mysql
use openser
drop table gw;
delete from version where table_name='gw'; (formatted as code in text)
insert into version values('gw', 5);
CREATE TABLE 'gw' ( 'id' int(10) unsigned NOT NULL auto_increment, 'gw_name' varchar(128) NOT NULL, 'grp_id' int(10) unsigned NOT NULL, 'ip_addr' varchar(15) NOT NULL, 'port' smallint(5) unsigned default NULL, 'uri_scheme' tinyint(3) unsigned default NULL, 'transport' tinyint(3) unsigned default NULL, 'strip' tinyint(3) unsigned default NULL, 'prefix' varchar(16) default NULL, 'dm' tinyint(3) unsigned...