[asterisk-ss7] chan_dahdi & libss7 alphanumeric extension

[huseyin kalyoncu]

hello,

we have an sangoma AFT104 card installed on asterisk box connected to
alcatel switch via ss7.
we use asterisk box for db lookup; call enters asterisk box then
an agi script performs some db lookups then returns call to alcatel
with a single command like this:
EXEC Dial DAHDI/g1/81B01XXXXXXXXXX

the problem is chan_dahdi & libss7 cannot send alphanumeric extension
to alcatel.
in alcatel "B01" seen as "001".
is there any way to send alphanumeric extension over ss7 with
chan_dahdi & libss7.
thanks

huseyin

software versions:

Linux voip2 2.6.38-8-server #42-Ubuntu SMP Mon Apr 11 03:49:04 UTC
2011 x86_64 x86_64 x86_64 GNU/Linu
wanpipe-3.5.23
dahdi-linux-complete-2.5.0.1+2.5.0.1
libpri-1.4.12
libss7-1.0.2
asterisk-1.6.2.20 & asterisk-1.8.6.0


confs are:

wanpipe1.conf
[devices]
wanpipe1 = WAN_AFT_TE1, Comment

[interfaces]
w1g1 = wanpipe1, , TDM_VOICE, Comment

[wanpipe1]
CARD_TYPE       = AFT
S514CPU         = A
CommPort        = PRI
AUTO_PCISLOT    = NO
PCISLOT         = 4
PCIBUS          = 8
FE_MEDIA        = E1
FE_LCODE        = HDB3
FE_FRAME        = NCRC4
FE_LINE         = 1
TE_CLOCK        = NORMAL
TE_REF_CLOCK    = 0
TE_SIG_MODE     = CCS
TE_HIGHIMPEDANCE        = NO
TE_RX_SLEVEL    = 430
LBO             = 120OH
FE_TXTRISTATE   = NO
MTU             = 1500
UDPPORT         = 9000
TTL             = 255
IGNORE_FRONT_END        = NO
TDMV_SPAN               = 1
TDMV_DCHAN              = 0
TE_AIS_MAINTENANCE = NO         #NO: defualt  YES: Start port in AIS
Blue Alarm and keep line down
                               #wanpipemon -i w1g1 -c Ttx_ais_off to
disable AIS maintenance mode

#wanpipemon -i w1g1 -c Ttx_ais_on to enable AIS maintenance mode
TDMV_HW_DTMF            = NO            # YES: receive dtmf events from
hardware
TDMV_HW_FAX_DETECT              = NO            # YES: receive fax
1100hz events from hardware
HWEC_OPERATION_MODE     = OCT_NORMAL    # OCT_NORMAL: echo cancelation
enabled with nlp (default)

        # OCT_SPEECH: improves software tone detection by disabling
NLP (echo possible)

        # OCT_NO_ECHO:disables echo cancelation but allows VQE/tone
functions.
HWEC_DTMF_REMOVAL       = NO    # NO: default  YES: remove dtmf out of
incoming media (must have hwdtmf enabled)
HWEC_NOISE_REDUCTION    = NO    # NO: default  YES: reduces noise on
the line - could break fax
HWEC_ACUSTIC_ECHO       = NO    # NO: default  YES: enables acustic
echo cancelation
HWEC_NLP_DISABLE        = NO    # NO: default  YES: guarantees
software tone detection (possible echo)
HWEC_TX_AUTO_GAIN       = 0     # 0: disable   -40-0: default tx audio
level to be maintained (-20 default)
HWEC_RX_AUTO_GAIN       = 0     # 0: disable   -40-0: default tx audio
level to be maintained (-20 default)
HWEC_TX_GAIN            = 0             # 0: disable   -24-24: db
values to be applied to tx signal
HWEC_RX_GAIN            = 0             # 0: disable   -24-24: db
values to be applied to tx signal

[w1g1]
ACTIVE_CH       = ALL
TDMV_HWEC       = NO
MTU             = 8

dahdi system.conf

#Sangoma A104 port 1 [slot:4 bus:8 span:1] <wanpipe1>
span=1,1,0,ccs,hdb3
bchan=1-15,17-31
mtp2=16

chan_dahdi.conf

[trunkgroups]

[channels]
switchtype=euroisdn
priindication=inband
context=page
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=no
echocancelwhenbridged=no
relaxdtmf=yes
rxgain=0.0
txgain=0.0
group=1
callgroup=1
pickupgroup=1
immediate=no



group=1
context=alcatel
signaling=ss7
ss7type=itu
linkset=1
pointcode=5555
adjpointcode=11264
defaultdpc=11264
networkindicator=national
sigchan=16

echocancel=no
ss7_called_nai=dynamic
ss7_calling_nai=dynamic
;ss7_internationalprefix=00
;ss7_nationalprefix=0
ss7_explictacm=yes
ss7_autoacm=yes
ss7_use_echocontrol=no
ss7_default_echocontrol=0
cicbeginswith=1
channel=1-15
cicbeginswith=17
channel=17-31
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