[asterisk-ss7] Undesired striping of leading zero?

[Magnus Kelly]

Hello,

I am making good steady progress with a msc to sip service using libss7, but
on testing sip inward to msc calls it appears that the leading zero is
missing from both the called number and the calling number, which causes
both routing issues in the msc and the caller id showing up on the called
mobile missing the leading 0 for caller id, I suspect it's configurable in
the zapta.conf file but googling has not yet helped?

 

The call is dialled as "exten => _07892111XXX,1,Dial(Zap/37/${EXTEN})"

 

And the 2nd question is how to dial from Chan 37 and up, instead of
hardcoding it as Zap/37?

 

One further question puzzling me is how might be possible to play music
instead of ringback as do other cell operators? Can asterisk do this?

 

Regards

Magnus

 

SS7 Trace & Zapata below

 

=========================================================================

Connected to Asterisk SVN-trunk-r111909 currently running on c7asterisk (pid
= 3230)

c7asterisk*CLI>

c7asterisk*CLI> ss7 debug linkset 3

Enabled debugging on linkset 3

        Network Indicator: 3 Priority: 0 User Part: ISUP (5)

        [ c5 ]

        OPC 1025 DPC 1024 SLS 5

        [ 00 44 00 51 ]

                CIC: 69

                [ 45 00 ]

                Message Type: IAM

                [ 01 ]

                --FIXED LENGTH PARMS[4]--

                Nature of Connection Indicator:

                        Satellites in connection: 0

                        Continuity Check: Check not required (0)

                        Outgoing half echo control device: not included (0)

                        [ 00 ]

                Forward Call Indicators:

                        Nat/Intl Call Ind: call to be treated as a national
call (0)

                        End to End Method Ind: no end-to-end method(s)
available (0)

                        Interworking Ind: no interworking encountered (0)

                        End to End Info Ind: no end-to-end information
available (0)

                        ISDN User Part Ind: ISDN user part used all the way
(1)

                        ISDN User Part Pref Ind: ISDN user part not
preferred all the way (1)

                        ISDN Access Ind: originating access ISDN (1)

                        SCCP Method Ind: no indication (0)

                        [ 60 01 ]

                Calling Party Category:

                        Category: Ordinary calling subscriber (10)

                        [ 0a ]

                Transmission Medium Requirements:

                        Speech (0)

                        [ 00 ]

                --VARIABLE LENGTH PARMS[1]--

                Called Party Number:

                        Nature of address: 3

                        NI: 0

                        Numbering plan: 1

                        Address signals: 7892111023#

                        [ 08 83 10 87 29 11 01 32 0f ]

                --OPTIONAL PARMS--

                Calling Party Number:

                        Nature of address: 3

                        NI: 0

                        Numbering plan: 1

                        Presentation: 0

                        Screening: 0

                        Address signals: 7711590311

                        [ 0a 07 03 10 77 11 95 30 11 ]

c7asterisk*CLI>

Len = 14 [ c9 c8 0b c5 01 04 00 51 45 00 06 16 d4 00 ]

FSN: 72 FIB 1

BSN: 73 BIB 1

<[1] MSU

[ c9 c8 0b ]

        Network Indicator: 3 Priority: 0 User Part: ISUP (5)

        [ c5 ]

        OPC 1024 DPC 1025 SLS 5

        [ 01 04 00 51 ]

                CIC: 69

                [ 45 00 ]

c7asterisk*CLI> Message Type: ACM

                [ 06 ]

                --FIXED LENGTH PARMS[1]--

                Backward Call Indicator:

                        Charge indicator: 2

                        Called party's status indicator: 1

                        Called party's category indicator: 1

                        End to End method indicator: 0

                        Interworking indicator: 0

                        End to End information indicator: 0

                        ISDN user part indicator: 1

                        Holding indicator: 0

                        ISDN access indicator: 1

                        Echo control device indicator: 0

                        SCCP method indicator: 1

                        [ 16 d4 ]

Zapata.conf

;

[trunkgroups]

;

[channels]

;

language=en

context=msc-in

signalling=ss7

callwaiting=yes

usecallingpres=yes

threewaycalling=yes

transfer=yes

canpark=yes

cancallforward=yes

callreturn=yes

echocancel=yes

echocancelwhenbridged=yes

group=1

callgroup=1

pickupgroup=1

;tonezone = 0 ; 0 is US

ss7type = itu

ss7_called_nai=dynamic

ss7_calling_nai=dynamic

;

ss7_internationalprefix = 00

ss7_nationalprefix = 0

ss7_subscriberprefix = 

ss7_unknownprefix = 

;

pointcode = 1025

adjpointcode = 1024

defaultdpc = 1024

;

cicbeginswith = 33

channel = 32-46

cicbeginswith = 49

channel = 48-62

cicbeginswith = 65

channel = 63-77

cicbeginswith = 81

channel = 79-93

networkindicator=national_spare

sigchan = 47

sigchan = 78

 

 

 

 

 

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