-extconfig.conf

sippeers => mysql,asterisk,sipfriends
sipusers => mysql,asterisk,sipfriends

-res_config_mysql.conf

[general]
dbhost = localhost
dbname = asterisk
dbuser = root
dbpass = ******
dbport = 3306
dbsock = /var/lib/mysql/mysql.sock

-sip.conf

rtupdate=yes
rtautoclear=no
rtcachefriends=yes
ignoreregexpire=yes

-CLI (When the peers try to registrate nothing appears at cli)


root penelope /etc/asterisk # asterisk -r
Asterisk 1.8.7.0, Copyright (C) 1999 - 2011 Digium, Inc. and others.
Created by Mark Spencer <markster@digium.com>
Asterisk comes with ABSOLUTELY NO WARRANTY; type 'core show warranty' for details.
This is free software, with components licensed under the GNU General Public
License version 2 and other licenses; you are welcome to redistribute it under
certain conditions. Type 'core show license' for details.
=========================================================================
  == Parsing '/etc/asterisk/extconfig.conf':   == Found
  == Binding sippeers to mysql/asterisk/sipfriends
  == Binding sipusers to mysql/asterisk/sipfriends
Connected to Asterisk 1.8.7.0 currently running on penelope (pid = 6308)
Verbosity is at least 99
penelope*CLI> realtime mysql status
general connected to asterisk@localhost, port 3306 with username root for 12 minutes.


-MYSQL PRIVILEGES (its running in localhost)
mysql> show grants;

| Grants for root@localhost

| GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY PASSWORD '*B1002BD15228EF5ABDDD47B21626E0F3DBBFC72B' WITH GRANT OPTION


**Maybe a field in the table must be setted?