[asterisk-ss7] SS7 : Missing SLC parameter on ANSI ??

Les - LES.NET (1996) INC. sales at les.net
Wed Jun 3 17:57:51 CDT 2009


ANSI specs for SS7 are available from ANSI :)
Or, you can buy them from Telcordia, they have a document set for SS7 &
ISUP.  I think its around $4000.

Les

> I don’t think so.
>
> Do you now where I can find specs of SS7 ANSI (T1 111, 112 and 113) ??
>
> And where we should fix it ?
>
>
>
>
>
> From: asterisk-ss7-bounces at lists.digium.com
> [mailto:asterisk-ss7-bounces at lists.digium.com] On Behalf Of Vashkar
> Sent: June-03-09 5:42 PM
> To: asterisk-ss7 at lists.digium.com
> Subject: Re: [asterisk-ss7] SS7 : Missing SLC parameter on ANSI ??
>
>
>
> Can you ask your operator to use ITU-WHITE instead of ANSI? I think that
> will solve the problem.
>
> On Tue, Jun 2, 2009 at 12:20 AM, Ruddy Gbaguidi <plugworld at micnes.com>
> wrote:
>
> Hi all
>
> We had a SS7 link with our provider here in Canada. Everything went well.
>
> But they are saying that asterisk is missing the SLC parameter when
> sending messages like LUN or LUA etc..
>
> So, this make asterisk not compatible with the SS7 protocol. In the debug
> message they send us from their switch,
>
> You can see that asterisk is always sending a SLS parameter as SLC.
>
> Do you know how we can fix it ??
>
>
>
> WHAT THEY SEND US :
>
>
>
> --------------------------------------------------------------------------------
>  Octet001  ANSI SS7               Count=000001 Time=02/06/2009
> 17:48:30:697
> --------------------------------------------------------------------------------
>  10010110  BIB/BSN                (150) 1/22
>  10010110  FIB/FSN                (150) 1/22
>  ..001010  SU type/length         (10) MSU10
>  00......  Spare                  0
> --------------------------------------------------------------------------------
>  Octet004  Service information octet
> --------------------------------------------------------------------------------
>  ....0000  Service indicator      (0) SNM    Signalling Network Management
> Message
>  ..11....  Message priority       3
>  10......  Network indicator      (2) N  National network
> --------------------------------------------------------------------------------
>  Octet005  Routing label
> --------------------------------------------------------------------------------
>  ........  DPC: Net-Clstr-Mbr     005-069-040 mtrrpqrj1md
>  ........  OPC: Net-Clstr-Mbr     001-187-255 mrhmondr00w(East)
>  00000000  SLS                    0
> --------------------------------------------------------------------------------
>  Octet012  Management inhibit message
> --------------------------------------------------------------------------------
>  00100110  Heading codes H1/H0    (38) LUN  Link uninhibited
>  ....0000  SLC                    0
>  0000....  Spare                  0
> --------------------------------------------------------------------------------
>  Checksum  CRC16................  0001110100001111 hex=1D0F
> --------------------------------------------------------------------------------
>
>
>
> WHAT WE SEND THEM
>
>
>
> Decoded signal unit
>
> # User:   T010871
> # Date:   02/06/2009 17:58:24
> # Octets: 12
>
> Not enough bytes to parse. Truncated Su.
> --------------------------------------------------------------------------------
>  Octet001  ANSI SS7               Count=000001 Time=02/06/2009
> 17:48:30:717
> --------------------------------------------------------------------------------
>  10010110  BIB/BSN                (150) 1/22
>  10010111  FIB/FSN                (151) 1/23
>  ..001001  SU type/length         (9) MSU09
>  00......  Spare                  0
> --------------------------------------------------------------------------------
>  Octet004  Service information octet
> --------------------------------------------------------------------------------
>  ....0000  Service indicator      (0) SNM    Signalling Network Management
> Message
>  ..11....  Message priority       3
>  10......  Network indicator      (2) N  National network
> --------------------------------------------------------------------------------
>  Octet005  Routing label
> --------------------------------------------------------------------------------
>  ........  DPC: Net-Clstr-Mbr     001-187-255 mrhmondr00w(East)
>  ........  OPC: Net-Clstr-Mbr     005-069-040 mtrrpqrj1md
>  00000000  SLS                    0
> --------------------------------------------------------------------------------
>  Octet012  Management inhibit message
> --------------------------------------------------------------------------------
> 01000110  Heading codes H1/H0    (70) LUA  Link uninhibit acknowledgement
>           <---------missing SLC value here
> --------------------------------------------------------------------------------
>  Checksum  CRC16................  0001110100001111 hex=1D0F
> --------------------------------------------------------------------------------
>
>
>
>
>
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>
>
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