MGCP - second call with asterisk

Hi everybody,

I would like to know if it’s possible to make and receive a second call with asterisk in MGCP. Your help will be appreciated. Thank You!

<MGCP.CONF>

;
; MGCP Configuration for Asterisk
;
[general]
port = 2727
;bindaddr = 0.0.0.0
disallow=all
allow=ulaw
allow=alaw

[Yous1104]
host=dynamic
context=mgcpasterisk
canreinvite=yes
dtmfmode=rfc2833
callerid=“1104” <21110401>
callwaiting=yes
transfer=yes
threewaycalling=yes
cancallforward=yes
;cancallwaiting=yes
callreturn=yes
singlepath=no
line=>aaln/85
line=>aaln/86
line=>aaln/87
line=>aaln/88

[Yous1102]
host=dynamic
context=mgcpasterisk
canreinvite=yes
dtmfmode=rfc2833
callerid=“1102” <21110201>
callwaiting=yes
transfer=yes
threewaycalling=yes
cancallforward=yes
;cancallwaiting=yes
callreturn=yes
singlepath=no
line=>aaln/89
line=>aaln/90

[Yous1124]
host=dynamic
context=mgcpasterisk
canreinvite=yes
dtmfmode=rfc2833
callerid=“1124” <21112401>
callwaiting=yes
transfer=yes
threewaycalling=yes
cancallforward=yes
;cancallwaiting=yes
callreturn=yes
singlepath=no
line=>aaln/61
line=>aaln/62
line=>aaln/63
line=>aaln/64
line=>aaln/65
line=>aaln/66
line=>aaln/67
line=>aaln/68
line=>aaln/69
line=>aaln/70
line=>aaln/71
line=>aaln/72
line=>aaln/73
line=>aaln/74
line=>aaln/75
line=>aaln/76
line=>aaln/77
line=>aaln/78
line=>aaln/79
line=>aaln/80
line=>aaln/81
line=>aaln/82
line=>aaln/83
line=>aaln/84

<extensions.conf>

[mgcpasterisk]
;==============================================
; Endpoints pour Mediatrix 1104
;==============================================

exten => 21110401,1,Dial(MGCP/aaln/85@Yous1104)
exten => 21110402,1,Dial(MGCP/aaln/86@Yous1104)
exten => 21110403,1,Dial(MGCP/aaln/87@Yous1104)
exten => 21110404,1,Dial(MGCP/aaln/88@Yous1104)

;==============================================
; Endpoints pour Mediatrix 1102
;==============================================

exten => 21110201,1,Dial(MGCP/aaln/89@Yous1102)
exten => 21110202,1,Dial(MGCP/aaln/90@Yous1102)

;==============================================
; Endpoints pour Mediatrix 1124
;==============================================
exten => 21112401,1,Dial(MGCP/aaln/61@Yous1124)
exten => 21112402,1,Dial(MGCP/aaln/62@Yous1124)
exten => 21112403,1,Dial(MGCP/aaln/63@Yous1124)
exten => 21112404,1,Dial(MGCP/aaln/64@Yous1124)
exten => 21112405,1,Dial(MGCP/aaln/65@Yous1124)
exten => 21112406,1,Dial(MGCP/aaln/66@Yous1124)
exten => 21112407,1,Dial(MGCP/aaln/67@Yous1124)
exten => 21112408,1,Dial(MGCP/aaln/68@Yous1124)
exten => 21112409,1,Dial(MGCP/aaln/69@Yous1124)
exten => 21112410,1,Dial(MGCP/aaln/70@Yous1124)
exten => 21112411,1,Dial(MGCP/aaln/71@Yous1124)
exten => 21112412,1,Dial(MGCP/aaln/72@Yous1124)
exten => 21112413,1,Dial(MGCP/aaln/73@Yous1124)
exten => 21112414,1,Dial(MGCP/aaln/74@Yous1124)
exten => 21112415,1,Dial(MGCP/aaln/75@Yous1124)
exten => 21112416,1,Dial(MGCP/aaln/76@Yous1124)
exten => 21112417,1,Dial(MGCP/aaln/77@Yous1124)
exten => 21112418,1,Dial(MGCP/aaln/78@Yous1124)
exten => 21112419,1,Dial(MGCP/aaln/79@Yous1124)
exten => 21112420,1,Dial(MGCP/aaln/80@Yous1124)
exten => 21112421,1,Dial(MGCP/aaln/81@Yous1124)
exten => 21112422,1,Dial(MGCP/aaln/82@Yous1124)
exten => 21112423,1,Dial(MGCP/aaln/83@Yous1124)
exten => 21112424,1,Dial(MGCP/aaln/84@Yous1124)

Thank you!