[asterisk-ss7] No audio using libss7 over E1 (SOLVED)

David Wilson dave at dcdata.co.za
Thu Aug 2 12:38:27 CDT 2012 

FINALLY after many hours and much hair pulling, emailing and assistance 
from this asterisk-ss7 list we've finally got it working!!
It turns out that the E1 links were swapped around on the provider's 
side which means that CICs were swapped around..
A BIG thank you to everyone that responded. Thank you for your 
assistance and guidance. I've definitely had a good SS7 learning 
experience! :)



Get important Linux and industry-related news at: facebook.com/dcdata 
<http://facebook.com/dcdata>

Kind regards,

David Wilson
CNS,CLS, LINUX+, CLA, DCTS, LPIC3
*LinuxTech CC t/a DcData*
CK number: 2001/058368/23
*Website:* 	http://www.dcdata.co.za
*Support:* 	+27(0)860-1-LINUX
*Mobile:* 	+27(0)824147413
*Tel:* 	+27(0)333446100
*Fax:* 	+27(0)866878971


On 08/02/2012 02:07 PM, David Wilson wrote:
> OK. An inbound call was placed to our system which landed on CIC1.
>
> /
> //Unhandled optional parameter 0x8 'Optional forward call indicator'
> [0x0 ]
> Unhandled optional parameter 0x31 'Propagation Delay Counter'
> [0x0 0x5a ]
> Unhandled optional parameter 0x3a 'Unknown'
> [0x44 0x2 0x68 0x0 0x0 0x0 ]
> Unhandled optional parameter 0x3f 'Location Number'
> [0x84 0x93 0x62 0x78 0x6 0x0 0x0 0x0 ]
> Unhandled optional parameter 0x39 'Parameter Compatibility Information'
> [0x31 0xd0 0x3a 0xd0 0x3f 0xc0 ]
>     -- Accepting call to '01900' on CIC 1
>     -- Executing [01900 at from-ss7:1] Answer("DAHDI/1-1", "") in new stack
>     -- Executing [01900 at from-ss7:2] Monitor("DAHDI/1-1", 
> "wav,1343909018.3,m") in new stack
>     -- Executing [01900 at from-ss7:3] Playback("DAHDI/1-1", 
> "/var/lib/asterisk/sounds/en/followme/pls-hold-while-try") in new stack
>     -- <DAHDI/1-1> Playing 
> '/var/lib/asterisk/sounds/en/followme/pls-hold-while-try.gsm' 
> (language 'en')
>     -- Executing [01900 at from-ss7:4] MusicOnHold("DAHDI/1-1", 
> "default,60") in new stack
>     -- Started music on hold, class 'default', on DAHDI/1-1
>     -- Stopped music on hold on DAHDI/1-1/
>
>
> I ran "dahdi_monitor 1 -vv" and could see my music on hold traffic 
> being transmitted as under (TX).
>
> I've tried downgrading asterisk to asterisk-1.6.0 as suggested by some 
> posts but I still get the same result. The calling in person does not 
> hear my music on hold.
>
>
>
>
> Get important Linux and industry-related news at: facebook.com/dcdata 
> <http://facebook.com/dcdata>
>
> Kind regards,
>
> David Wilson
> CNS,CLS, LINUX+, CLA, DCTS, LPIC3
> *LinuxTech CC t/a DcData*
> CK number: 2001/058368/23
> *Website:* 	http://www.dcdata.co.za
> *Support:* 	+27(0)860-1-LINUX
> *Mobile:* 	+27(0)824147413
> *Tel:* 	+27(0)333446100
> *Fax:* 	+27(0)866878971
>
>
> On 08/02/2012 01:34 PM, David Wilson wrote:
>> Thank you for your reply Kalolyan.
>>
>> I've made the adjustments that you've suggested and will retest shortly.
>> A quick check though with regards to dahdi_monitor syntax. May I use 
>> dahdi_monitor as follows to show the CIC?
>> /dahdi_monitor 1 -v/
>>
>> For monitoring channel 1.
>>
>>
>>
>>
>>
>>
>> Get important Linux and industry-related news at: facebook.com/dcdata 
>> <http://facebook.com/dcdata>
>>
>> Kind regards,
>>
>> David Wilson
>> CNS,CLS, LINUX+, CLA, DCTS, LPIC3
>> *LinuxTech CC t/a DcData*
>> CK number: 2001/058368/23
>> *Website:* 	http://www.dcdata.co.za
>> *Support:* 	+27(0)860-1-LINUX
>> *Mobile:* 	+27(0)824147413
>> *Tel:* 	+27(0)333446100
>> *Fax:* 	+27(0)866878971
>>
>>
>> On 08/02/2012 01:02 PM, Kaloyan Kovachev wrote:
>>> Hi,
>>>
>>> On Thu, 02 Aug 2012 12:19:06 +0200, David Wilson<dave at dcdata.co.za>
>>> wrote:
>>>> */etc/asterisk/chan_dahdi.conf*:
>>>> [trunkgroups]
>>>>
>>>> [channels]
>>>> usecallerid=yes
>>>> hidecallerid=no
>>>> callwaiting=yes
>>>> usecallingpres=yes
>>>> callwaitingcallerid=yes
>>>> threewaycalling=yes
>>>> transfer=yes
>>>> canpark=yes
>>>> cancallforward=yes
>>>> callreturn=yes
>>>> echocancel=yes
>>>> echocancelwhenbridged=yes
>>>> relaxdtmf=yes
>>>> rxgain=0.0
>>>> txgain=0.0
>>>> group=1
>>>> callgroup=1
>>>> pickupgroup=1
>>>> immediate=no
>>>>
>>>> ;Sangoma A102 port 1 [slot:4 bus:12 span:1]<wanpipe1>
>>>> switchtype=euroisdn
>>> you should not define switchtype with ss7 - it is only for PRI signaling
>>>
>>>> context=from-ss7
>>>> group=0
>>>> echocancel=no
>>>> signaling=ss7
>>>> linkset=1
>>>> ss7type=itu
>>>> ss7_called_nai=dynamic
>>>> ss7_calling_nai=dynamic
>>>> ss7_internationalprefix=00
>>>> ss7_nationalprefix=0
>>>> ss7_subscriberprefix=
>>>> ss7_unknownprefix=
>>>> ;ss7_explicitacm=yes
>>>> pointcode=1379
>>>> adjpointcode=1288
>>>> defaultdpc=1288
>>>> networkindicator=national
>>>>
>>>> ;First E1
>>>> sigchan=16
>>>> cicbeginswith=1
>>>> channel=1-15
>>>> cicbeginswith=17
>>>> channel=17-31
>>>>
>>>> ;Second E1
>>>> sigchan=47
>>>> cicbeginswith=33
>>>> channel=32-46
>>>> cicbeginswith=49
>>>> channel=48-62
>>>>
>>> please define your sigchans last.
>>>
>>> you may use dahdi_monitor to check on which CIC you are receiving the
>>> audio from the other side and if it is not the one on which you are sending
>>> it - you can be sure about the misalignment. You may comment out the second
>>> E1 and check with the telco if they get the signaling on their first link
>>> or (as you can't swap the cables) just swap them in your config and see if
>>> the audio is working:
>>>
>>> ;First E1
>>> cicbeginswith=1
>>> channel=32-46
>>> cicbeginswith=17
>>> channel=48-62
>>>
>>> ;Second E1
>>> cicbeginswith=33
>>> channel=1-15
>>> cicbeginswith=49
>>> channel=17-31
>>> sigchan=16
>>> sigchan=47
>>>
>>>
>>>> */etc/asterisk/extensions.conf*
>>>> [general]
>>>>
>>>> [from-ss7]
>>>> exten =>  _X.,1,Answer
>>>> exten =>  _X.,n,Monitor(wav,${UNIQUEID},m)
>>>> exten =>
>>>> _X.,n,Playback(/var/lib/asterisk/sounds/en/followme/pls-hold-while-try)
>>>> exten =>  _X.,n,MusicOnHold(default,60)
>>>>
>>>> Get important Linux and industry-related news at: facebook.com/dcdata
>>>> <http://facebook.com/dcdata>
>>>>
>>>> Kind regards,
>>>>
>>>> David Wilson
>>>> CNS,CLS, LINUX+, CLA, DCTS, LPIC3
>>>> *LinuxTech CC t/a DcData*
>>>> CK number: 2001/058368/23
>>>> *Website:* 	http://www.dcdata.co.za
>>>> *Support:* 	+27(0)860-1-LINUX
>>>> *Mobile:* 	+27(0)824147413
>>>> *Tel:* 	+27(0)333446100
>>>> *Fax:* 	+27(0)866878971
>>> --
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