Gracias, me fui muy útil el archivo de configuración alojado en tu blog.
Lo dejare adjunto en este blog también para el que lo pueda necesitar.
[general]
port=5000 ; UDP port
autoprovisioning=yes
qualify=yes
[8860] ; extension of the device for reference
line => 8860 ;the actual extension of the device
device=00148BF43A20 ; mac address of the phone (look on the back should be there)
maintext0="Asterisk" ; default = "Welcome", 24 characters max. Shows on the LCD
callerid="First Last" <5558860> ;CLID that asterisk will pass
context=from-internal ; context, default="default"
mailbox=8860 ; Specify the mailbox number. Used by Message Waiting Indication
linelabel="8860" ; Softkey label for the next line=> entry, 9 char max.
rtp_port=10000 ; RTP port used by the phone, default = 10000. RTCP = rtp_port+1
rtp_method=3 ; If you don't have sound, you can try 1, 2 or 3, default = 0
status_method=0 ; If you don't see status text, try 1, default = 0
extension=line ; Add an extension into the dialplan. Only valid in context specified previously.
; none=don't add (default), ask=prompt user, line=use the line number
dateformat=1 ; 0 = month/day, 1 (default) = day/month
timeformat=1 ; 0 = 0:00am ; 1 (default) = 0h00, 2 = 0:00
contrast=5 ; define the contrast of the LCD. From 0 to 15. Default = 8
country=us ; country (ccTLD) for dial tone frequency. See README, default = us