***** sip.conf *****
[general]
context=default        ; default
allowoverlap=no        ; default
udpbindaddr=0.0.0.0    ; default
tcpenable=no           ; default
tcpbindaddr=0.0.0.0    ; default
transport=udp          ; default
srvlookup=yes          ; default

register => nickname@sip.beeline.ru:password:7499952XXXX@sip.beeline.ru@msk.sip.beeline.ru:5060/7499952XXXX

[authentication]       ; default

[6000]
type=friend
secret=pass
username=6000
host=dynamic
context=sip-in

[6001]
type=friend
secret=pass
username=6001
host=dynamic
context=sip-in

[beeline]
context=from-beeline
type=peer
authname=nickname
fromdomain=sip.beeline.ru
secret=pass
fromuser=nickname
host=sip.beeline.ru
canreinvite=no
insecure=port,invite
outboundproxy=msk.sip.beeline.ru,force
defaultuser=7499952xxxx@sip.beeline.ru
auth=7499952xxxx@sip.beeline.ru


[basic-options](!)               ; default
        dtmfmode=rfc2833
        context=from-office
        type=friend

[natted-phone](!,basic-options)  ; default
        directmedia=no
        host=dynamic

[public-phone](!,basic-options)  ; default
        directmedia=yes

[my-codecs](!)                   ; default
        disallow=all
        allow=ilbc
        allow=g729
        allow=gsm
        allow=g723
        allow=ulaw

[ulaw-phone](!)                  ; default
        disallow=all
        allow=ulaw


***** extensions.conf *****
[general]              ; default
static=yes
writeprotect=no
clearglobalvars=no

[globals]              ; default
CONSOLE=Console/dsp
IAXINFO=guest
TRUNK=DAHDI/G2
TRUNKMSD=1

[default]
exten => _X.,1,Hangup

[sip-in]
exten => _X.,1,Dial(SIP/beeline/${EXTEN})
same => n,Hangup

[from-beeline]
exten => 7499952xxxx,1,Dial(SIP/beeline/7916xxxxxxx)
same => n,Hangup