Hola:
En mi dialplan uso la sentencia "$ {QUEUE_MEMBER (1200)}" y "$ {QUEUE_MEMBER (1200,logged)}" para saber el número de miembros logueado en determinado momento.

Noté que a veces el contador es incorrecto.
La unica manera de solucionar esto es con "service asterisk restart"

asterisk*CLI> queue show
SIP/1004(Unavailable) has taken no calls yet
SIP/1005 (Not in use) has taken no calls yet SIP/1004(Unavailable) has taken no calls yet

asterisk*CLI> sip show peers
1004 (Unspecified) D N A 5060 UNKNOWN
1005 (Unspecified) D N A 5060 UNKNOWN 1006 (Unspecified) D N A 5060 UNKNOWN

sip.conf

[general]
context = default ;Contexto por defecto para las llamadas entrantes
bindport = 5060 ;puerto para conexiones SIP
bindaddr = 0.0.0.0
srvlookup = yes
disallow = all
allow = ulaw
allow = alaw
allow = gsm
allow = g723
language = es ;lenguage por defecto
callcounter = yes ; este parametro es para llevar un mejor registro de estado de las cuentas SIP

[1005 ]
secret = xxxx
language = es
deny = 0.0.0.0/0.0.0.0
dtmfmode = rfc2833
canreinvite = no
context = from-internal
host = dynamic
type = friend
nat = yes
port = 5060
qualify = yes
callgroup =
pickupgroup =
dial = SIP/1005
accountcode =
mailbox = 1005 @device
permit = 0.0.0.0/0.0.0.0
callerid = "1005 "
call-limit = 50
faxdetect = no

queue.conf

[general]
persistentmembers=no

[1200]
;cola General
announce-holdtime=yes
announce-position=yes
autofill=no
eventmemberstatus=no
eventwhencalled=no
joinempty=yes
leavewhenempty=no
maxlen=0
announce=custom/anuncio_de_agente_general
periodic-announce=custom/todos_op_ocupados_aguarde_por_favor
periodic-announce-frequency=15
queue-callswaiting=silence/1
queue-thereare=silence/1
queue-youarenext=silence/1
reportholdtime=no
retry=5
ringinuse=no
servicelevel=60
strategy=ringall
timeout=15
weight=0
wrapuptime=0
member=>SIP/1004
member=>SIP/1005
member=>SIP/1006

Alguien sabe porque que algunas extensiones sip no salen correctamente de las colas?