Changes and adding iaxmodems are not working

Hi,

I have a ready installed Asterisk with Hylafax. (I have had an external person to make the installation, because I have not the knowledge)
There are Modemgroups for incoming and outgoing Modems (ISDN)
and Modemgroups for 3 provider of sip.
One of this is dus.net
Now, I have a second dus.net account and like to add this account as another modem-group.
Because I have had a dus.net account before I thought I can add the second account in the same way like the first account was installed. By this way I have changed one modem-name from ttyIAX30 to ttyIAX030
I have made the following changes but it does not work (cannot see any change with faxstat)

rtp.conf
nothing changed

iax.conf
Modem 30 auf 030 changed
and added: (first dus-account was named dus so I have add the name for the secodn dus2)
[iaxmodem300]
type=friend
host=dynamic
port=4800
secret=password
deny=0.0.0.0/0.0.0.0
permit=127.0.0.1/255.255.255.255
qualify=60000
context=fax-out-dus2

[iaxmodem301]
type=friend
host=dynamic
port=4801
secret=password
deny=0.0.0.0/0.0.0.0
permit=127.0.0.1/255.255.255.255
qualify=60000
context=fax-out-dus2

sip.conf
added:
register=>{AccNum}:{Password}@dus2/{AccNumb}
und hinzugefuegt:

[dus2]
type=friend
host=proxy.dus.net
username={AccNumb}
fromuser={AccNumb}
secret={Password}
disallow=all
allow=alaw
allow=ulaw
insecure=very
qualify=yes
canreinvite=no

extensions.conf
added:
[fax-out-dus2]
exten => _X.,1,NoOp(Outgoing call from: ${CALLERID(num)} ${CALLERID(name)}, to: ${EXTEN})
exten => _X.,2,Dial(SIP/${EXTEN}@dus2,30)
exten => _X.,3,Hangup

changed:
modem_in15=iaxmodem030
old was:
modem_in15=iaxmodem30

New file added to /etc/iaxmodem/
conf.ttyIAX030 {name changed only}
conf.ttyIAX300
conf.ttyIAX301

I have added the new modems to /etc/inittab
new and changed iaxmodems and faxgetties

On Hylafax config I have added a new Group:
Old dus-group was:
ModemGroup: "dus:^ttyIAX(100|101)$"
I have added:
ModemGroup: “dus2:^ttyIAX(300|301)$”

I have added
config.ttyIAX030 {for namechange deleted: config.ttyIAX30}
config.ttyIAX300
config.ttyIAX301

I have: asterisk -rx reload (also I have tested a complete restart)
And restarted hylafax

Server register at dus.net account 1 and accout 2 correct

But in the faxstat I cannot see any of my added modems. Only ttyIAX30 is not shown

What do I forget to change to get it working??? I have made all changes from a list of my installer and have no idea what happens.

Please can anybody give me a hint what I have to do.

Vagabundo