SIP/XXXX&SIP/XXXX do not work

Hi, I need to make run two or more SIP Phone in the same time.

But I use SIP/XXXX&SIP/XXXX but it do not worked the both.

Check my extensions.conf


[general] ;Opções gerais do Dialplan
writeprotect=no ;Modo somente leitura
static=yes ;Modo estático

exten => _XXXX,1,Dial(SIP/${EXTEN},60,tT)

;Fixo Local
exten => _0XX[2-5]XXXXXXX,1,Dial(SIP/tellfree/${EXTEN},30,tT)

;Celular Local
exten => _0XX9[4-9]XXXXXXX,1,Dial(SIP/tellfree/${EXTEN},30,tT)

;Celular Nextel
exten => _0XX7XXXXXXX,1,Dial(SIP/tellfree/${EXTEN},30,tT)

exten => s,1,Answer()
exten => s,n,Background(/var/lib/asterisk/sounds/BoasVidas)
exten => s,n,WaitExten(1)
exten => s,n,Dial(${TELEFONISTA},30,tT)

But when I received a call just ring SIP/4024, not others SIP account.

What I do for ring all SIP in the same time?


That is how two devices can be dialed at the same time. What does the console output show when you attempt it?