Starting with SS7. Channel-Configuration

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Hi Tobias,

Red Alarm on the card usually indicates a physical problem, I might be 
wrong but check your cabling.

Rgrds
Markus


Tobias Wolf wrote:
> Hi all,
>
> we have used Asterisk with Standard PRI E1 Connection for some time.
>
> Now we have the opportunity to be connected to the PSTN over an SS7
> Trunk. The Device to which we will be connected is an Ericsson Axe.
>
> I have followed instruction from this source:
> http://www.cesnet.cz/doc/techzpravy/2006/asterisk-ss7/
>
> More precice i worked through chapter 6 to use the native ss7 capability
> of Asterisk.
>
> So i downloaded, comiled and installed:
>
> - libss7-trunk
> - libpri-trunk
> - asterisk-trunk
>
> I have not used zaptel-trunk since the package gave a warning the it is
> currently broken, so have have used zaptel-1.4.5.1
>
> In the server is an Digium TE220B.
>
> Here is my zaptel configuration:
>
> span=1,0,0,ccs,hdb3,crc4
> bchan=2-31
> dchan=1
> loadzone = us
> defaultzone=us
>
> B- and D-channel configuration were communicated by the owner of the
> ericsson switch.
>
> Here is the zapata.conf:
> signalling=ss7
> rxwink=300
> usecallerid=yes
> hidecallerid=no
> callwaiting=yes
> usecallingpres=yes
> callwaitingcallerid=yes
> transfer=yes
> canpark=yes
> cancallforward=yes
> callreturn=yes
> echocancel=yes
> echocancelwhenbridged=yes
> rxgain=0.0
> txgain=0.0
> group=1
> callgroup=1
> pickupgroup=1
> immediate=no
> ; ---------------- Options for use with signalling=ss7 -----------------
> ; Variant of SS7 signaling:
> ; Options are itu and ansi
> ss7type = itu
>
> ; SS7 Called Nature of Address Indicator
> ;
> ; unknown:        Unknown
> ; subscriber:     Subscriber
> ; national:       National
> ; international:  International
> ; dynamic:        Dynamically selects the appropriate dialplan
> ;
> ss7_called_nai=dynamic
> ;
> ; SS7 Calling Nature of Address Indicator
> ;
> ; unknown:        Unknown
> ; subscriber:     Subscriber
> ; national:       National
> ; international:  International
> ; dynamic:        Dynamically selects the appropriate dialplan
> ;
> ss7_calling_nai=dynamic
> ;
> ;
> ; sample 1 for Germany
> ;ss7_internationalprefix = 00
> ;ss7_nationalprefix = 0
> ;ss7_subscriberprefix =
> ;ss7_unknownprefix =
> ;
>
> ; All settings apply to linkset 1
> linkset = 1
>
> ; Point code of the linkset.  For ITU, this is the decimal number
> ; format of the point code.  For ANSI, this can either be in decimal
> ; number format or in the xxx-xxx-xxx format
> pointcode = 7430
>
> ; Point code of node adjacent to this signaling link (Possibly the STP
> between you and
> ; your destination).  Point code format follows the same rules as above.
> adjpointcode = 7420
>
> ; Default point code that you would like to assign to outgoing messages
> (in case of
> ; routing through STPs, or using A links).  Point code format follows
> the same rules
> ; as above.
> defaultdpc = 7420
>
> ; Begin CIC (Circuit indication codes) count with this number
> cicbeginswith = 2
>
> ; What the MTP3 network indicator bits should be set to.  Choices are
> ; national, national_spare, international, international_spare
> networkindicator=international
>
> ; First signaling channel
> sigchan = 1
>
> ; Channels to associate with CICs on this linkset
> channel = 2-31
>
> Here is the snippet of asterisk startup (regarding SS7):
>   -- Registered channel 2, SS7 Signalling signalling
>     -- Registered channel 3, SS7 Signalling signalling
>     -- Registered channel 4, SS7 Signalling signalling
>     -- Registered channel 5, SS7 Signalling signalling
>     -- Registered channel 6, SS7 Signalling signalling
>     -- Registered channel 7, SS7 Signalling signalling
>     -- Registered channel 8, SS7 Signalling signalling
>     -- Registered channel 9, SS7 Signalling signalling
>     -- Registered channel 10, SS7 Signalling signalling
>     -- Registered channel 11, SS7 Signalling signalling
>     -- Registered channel 12, SS7 Signalling signalling
>     -- Registered channel 13, SS7 Signalling signalling
>     -- Registered channel 14, SS7 Signalling signalling
>     -- Registered channel 15, SS7 Signalling signalling
>     -- Registered channel 16, SS7 Signalling signalling
>     -- Registered channel 17, SS7 Signalling signalling
>     -- Registered channel 18, SS7 Signalling signalling
>     -- Registered channel 19, SS7 Signalling signalling
>     -- Registered channel 20, SS7 Signalling signalling
>     -- Registered channel 21, SS7 Signalling signalling
>     -- Registered channel 22, SS7 Signalling signalling
>     -- Registered channel 23, SS7 Signalling signalling
>     -- Registered channel 24, SS7 Signalling signalling
>     -- Registered channel 25, SS7 Signalling signalling
>     -- Registered channel 26, SS7 Signalling signalling
>     -- Registered channel 27, SS7 Signalling signalling
>     -- Registered channel 28, SS7 Signalling signalling
>     -- Registered channel 29, SS7 Signalling signalling
>     -- Registered channel 30, SS7 Signalling signalling
>     -- Registered channel 31, SS7 Signalling signalling
>     -- Automatically generated pseudo channel
>   == Starting SS7 linkset on span 1
>   == Registered channel type 'Zap' (Zapata Telephony Driver w/PRI w/SS7)
>   == Manager registered action ZapTransfer
>   == Manager registered action ZapHangup
>   == Manager registered action ZapDialOffhook
>   == Manager registered action ZapDNDon
>   == Manager registered action ZapDNDoff
>   == Manager registered action ZapShowChannels
>   == Manager registered action ZapRestart
>  chan_zap.so => (Zapata Telephony)
>
>
> This is the output of ss7 debugging:
> *CLI> ss7 debug linkset 1
> Enabled debugging on linkset 1
> *CLI> Len = 4 [ ff ff 01 03 ]
> FSN: 127 FIB 1
> BSN: 127 BIB 1
>   
>> [0] LSSU SIOS
>>     
>
> *CLI> ss7 show linkset 1
> SS7 linkset 1 status: Down
>
> *CLI> zap show channels
>    Chan Extension  Context         Language   MOH Interpret
> Blocked    State
>  pseudo            default                    default
>       In Service
>       2            default                    default
>       Out of Ser
>       3            default                    default
>       Out of Ser
>       4            default                    default
>       Out of Ser
>       5            default                    default
>       Out of Ser
>       6            default                    default
>       Out of Ser
>       7            default                    default
>       Out of Ser
>       8            default                    default
>       Out of Ser
>       9            default                    default
>       Out of Ser
>      10            default                    default
>       Out of Ser
>      11            default                    default
>       Out of Ser
>      12            default                    default
>       Out of Ser
>      13            default                    default
>       Out of Ser
>      14            default                    default
>       Out of Ser
>      15            default                    default
>       Out of Ser
>      16            default                    default
>       Out of Ser
>      17            default                    default
>       Out of Ser
>      18            default                    default
>       Out of Ser
>      19            default                    default
>       Out of Ser
>      20            default                    default
>       Out of Ser
>      21            default                    default
>       Out of Ser
>      22            default                    default
>       Out of Ser
>      23            default                    default
>       Out of Ser
>      24            default                    default
>       Out of Ser
>      25            default                    default
>       Out of Ser
>      26            default                    default
>       Out of Ser
>      27            default                    default
>       Out of Ser
>      28            default                    default
>       Out of Ser
>      29            default                    default
>       Out of Ser
>      30            default                    default
>       Out of Ser
>      31            default                    default
>       Out of Ser
>
> *CLI> zap show status
> Description                              Alarms     IRQ        bpviol
>   CRC4
> T2XXP (PCI) Card 0 Span 1                RED        0          0          0
> T2XXP (PCI) Card 0 Span 2                OK         0          0          0
>
>
> Grats for anyone who has followed so far ;)
>
> I think it is clear that my SS7 configuration didn't work so far ...
> My provider for SS7 connection claims that on his side everthing is up
> and running.
>
> According to the information i gave above, can anybody give me a hint,
> where to look for an error.
>
> I further information are required please send me an email and i will
> try to provide them.
>
> Thanks in advance.
>
> Regards,
>
>   




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