Problem to pickup calls

Hi!

after a new installation of FreePBX it is impossible to pickup calls.
All users are in the same Callgroup and Pickupgroup.

Pickup is unchanged *8

I found in the logfile when someone try to take a call:

[2013-10-18 12:58:05] NOTICE[2679][C-00000363]: chan_sip.c:25288 handle_request_invite: Call from ‘38’ (10.0.1.139:5060) to extension ‘*813’ rejected because extension not found in context ‘from-internal’.

What is wrong?

Config:
[13]
deny=0.0.0.0/0.0.0.0
secret=xxx
dtmfmode=rfc2833
canreinvite=no
context=from-internal
host=dynamic
trustrpid=yes
sendrpid=no
type=friend
nat=no
port=5060
qualify=yes
qualifyfreq=60
transport=udp
avpf=no
icesupport=no
encryption=no
callgroup=1
pickupgroup=1
allow=alaw
dial=SIP/13
[email protected]
permit=0.0.0.0/0.0.0.0
callerid=abc <13>
callcounter=yes
faxdetect=no
cc_monitor_policy=generic

[38]
deny=0.0.0.0/0.0.0.0
secret=xxx
dtmfmode=rfc2833
canreinvite=no
context=from-internal
host=dynamic
trustrpid=yes
sendrpid=no
type=friend
nat=no
port=5060
qualify=yes
qualifyfreq=60
transport=udp
avpf=no
icesupport=no
encryption=no
callgroup=1
pickupgroup=1
dial=SIP/38
[email protected]
permit=0.0.0.0/0.0.0.0
callerid=xyz <38>
callcounter=yes
faxdetect=no
cc_monitor_policy=generic

no one?