SLA + norma BLF at the same time. Possible?

Hello i have set up a working SLA system with asterisk 1.4.11 and i am facing the problem, that standard BLF to monitor extensions stops working, as my asterisk setup only sends information about line notifys and not about extension notifies.

My question is:

Is it possible to have both working?

The idea is to have a phone with, for example, two keys that monitor trunks in SLA, and 4 keys for other phone extensions in the office, so i can know who is busy.

Just to make things clear. SLA is working perfectly as intended but i also want to monitor local extensions additionally to monitoring lines.

Configuration follows:

sip.conf:

[station1]
type=friend
secret=1234
record_out=Adhoc
record_in=Adhoc
qualify=yes
port=5060
nat=yes
mailbox=100@device
host=dynamic
dtmfmode=rfc2833
dial=SIP/station1
context=sla_stations
canreinvite=no
callerid=station1

[station2]
type=friend
secret=1234
record_out=Adhoc
record_in=Adhoc
qualify=yes
port=5060
nat=yes
mailbox=101@device
host=dynamic
dtmfmode=rfc2833
dial=SIP/station2
context=sla_stations
canreinvite=no
callerid=station2

sla.conf:
[line1]
type=trunk
device=Zap/1
autocontext=line1
ringtimeout=120
barge=no
hold=open

[line2]
type=trunk
device=Zap/2
autocontext=line2
ringtimeout=120
barge=no
hold=open

;; Stations

[station1] ; Define a name for this station.
type=station ; This line indicates that this entry is a station.
device=SIP/station1 ; Each station must be mapped to a device.
autocontext=sla_stations ; This supports automatic generation of the dialplan entries if
; the autocontext option is used. All stations can use the same
; context without conflict. The device for this station should
; have its context configured to the same one listed here.
ringtimeout=120 ; Set a timeout for how long to allow the station to ring for an
; incoming call, in seconds.
ringdelay=2 ; Set a time for how long to wait before beginning to ring this station
; once there is an incoming call, in seconds.
hold=open
trunk=line1
trunk=line2

[station2] ; Define a name for this station.
type=station ; This line indicates that this entry is a station.
device=SIP/station2 ; Each station must be mapped to a device.
autocontext=sla_stations ; This supports automatic generation of the dialplan entries if
; the autocontext option is used. All stations can use the same
; context without conflict. The device for this station should
; have its context configured to the same one listed here.
ringtimeout=120 ; Set a timeout for how long to allow the station to ring for an
; incoming call, in seconds.
ringdelay=2 ; Set a time for how long to wait before beginning to ring this station
; once there is an incoming call, in seconds.
hold=open
trunk=line1
trunk=line2

[station3] ; Define a name for this station.
type=station ; This line indicates that this entry is a station.
device=SIP/station3 ; Each station must be mapped to a device.
autocontext=sla_stations ; This supports automatic generation of the dialplan entries if
; the autocontext option is used. All stations can use the same
; context without conflict. The device for this station should
; have its context configured to the same one listed here.
ringtimeout=120 ; Set a timeout for how long to allow the station to ring for an
; incoming call, in seconds.
ringdelay=2 ; Set a time for how long to wait before beginning to ring this station
; once there is an incoming call, in seconds.
hold=open
trunk=line1
trunk=line2