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

[Ruddy Gbaguidi]

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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