Invalid database specified: asterisk

[adisanjaya]

bang anton & teman2...
mohon bantuannya..

saya menkonfigurasi asterisk realtime mysql menemui mslah seperti berikut :

general connected to asterisk@127.0.0.1, port 3306 with username root for 17 minutes.
[Nov 19 11:30:46] WARNING[7997]: res_config_mysql.c:317 realtime_mysql: MySQL RealTime: Invalid database specified: asterisk
[Nov 19 11:30:46] WARNING[7997]: res_config_mysql.c:317 realtime_mysql: MySQL RealTime: Invalid database specified: asterisk
[Nov 19 11:30:46] NOTICE[7997]: chan_sip.c:19536 handle_request_register: Registration from '007 <sip:007@172.16.40.16>' failed for '172.16.40.16' - No matching peer found

kira2 dimana saya salahnya dan kurangnya??? saya make asterisk versi 1.6.1.1

pada extconfig.conf :
sippeers => mysql,asterisk,sip_buddies
sipusers => mysql,asterisk,sip_buddies
extensions => mysql,asterisk,extensions

pada res_mysql.conf :
[general]
dbhost = 127.0.0.1
dbname = asterisk
dbuser = root
dbpass = adisanjaya
dbport = 3306
dbsock = /var/lib/mysql/mysql.sock

pada sip.conf :
rtcachefriends=yes

terima kasih....