Name of called party not shown on my phone

Hi everybody,

I just started working with Asterisk (v. 1.2.13) and i have a small problem. Whenever I make a call from SIP client to SIP client, the name of the extension i called is not shown on the phone where i started the call.
I had a look at an ethereal trace and there is no name in the SIP Header so that the phone could display it.

Does somebody know anything about that?

<<SIP.CONF>>
[general]
language=de
port=5060
disallow=all
allow=alaw
allow=ulaw
allow=GSM
nat=no
canreinvite=no
tos=lowdelay
context=default

[9001]
type=friend
username=9001
secret=password
host=dynamic
callerid=Beckenbauer, Franz
context=default
mailbox=9001
callgroup=1
pickupgroup=1

[9002]
type=friend
username=9002
secret=password
host=dynamic
callerid=Walter, Fritz
context=default
mailbox=9002
callgroup=1
pickupgroup=1

<<EXTENSIONS.CONF>>
[general]
static=yes
writeprotect=yes

[default]
exten => 10,1,Answer
exten => 10,n,Wait(1)
exten => 10,n,VoicemailMain
exten => 10,n,Hangup

exten => 11,1,Answer
exten => 11,n,Wait(1)
exten => 11,n,VoicemailMain(s${CALLERIDNUM})
exten => 11,n,Hangup

exten => _90XX,1,Dial(SIP/${EXTEN},20)
exten => _90XX,n,Wait(1)
exten => _90XX,n,Voicemail(${EXTEN})
exten => _90XX,n,Hangup

Thanks for your time…

Try using this:
callerid=“Beckenbauer, Franz” <9001>