Link Up but no audio

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Daniel Pizarro Bustamante wrote:
> Hello Mesbah:
> 
> I am using the libss7-1.0 because the libss7-trunk has an error that we could see in this forum.
> 
> The asterisk and dahdi was downloaded from the svn (trunk versions).
> 
> How can I detect the CIC mismatch?

Sorry, hit the wrong button on my last email.

That was meant to say:

One way to do it is to bring a call up, run a playback, and use 
dahdi_monitor -v on the channel you think it should be on.  If you do 
not see the audio levels present on TX or RX, you have the CIC wrong.

You can then run dahdi_monitor -v on the surrounding channels to see if 
you're off by one or two on that channel.

Many people don't configure the subsequent spans correctly after the 
first one.  So, for example, for an E1, oftentimes a telco will 
configure the first span with 32 CICs, even though DAHDI registers only 
31 physical channels, and people forget to add a new "cicbeginswith=33" 
for the channels in the second span, causing an off by one CIC error 
starting with the second span (and each subsequent span).

Matthew Fredrickson
Digium, Inc.

> 
> Thanks,
> 
> Daniel Pizarro
> 
> 
> Connected to Asterisk SVN-
> 
> 
> --- El s?b 18-abr-09, Mesbahuddin Malik <mesbah.malik at gmail.com> escribi?:
> 
>> De: Mesbahuddin Malik <mesbah.malik at gmail.com>
>> Asunto: Re: [asterisk-ss7] Link Up but no audio
>> A: asterisk-ss7 at lists.digium.com
>> Fecha: s?bado, 18 abril, 2009, 11:40 am
>> Hi,
>>  
>> For various reasons this happen. The main reasons are
>>
>>  
>> 1.Firewall
>>  
>> 2.Libss7 version Mitch Matching
>>  
>> 3. CIC Mismatch
>>  
>> 4. Terminal End firewall issues
>>  
>>  
>> so check the above and let me know . I can help you in
>> this respect.
>>  
>> Best regards
>> Mesbah
>>
>>
>> On Sat, Apr 18, 2009 at 8:14 PM,
>> Daniel Pizarro Bustamante <dpizarro at yahoo.com>
>> wrote:
>>
>>
>>
>> Hello:
>>
>> I have an SS7 deployment with Asterisk
>> 1.6.x/libss7(1.0.x)/DAHDI.
>>
>> I try to originate a call (from CLI) and I am able to
>> connect the call
>>
>> but the called party doesn't hear anything. Eg.
>>
>> Originate Local/01996613358 at llamada application Playback
>> tt-monkeys
>>
>> I can send dtmf's and the called party can hear them.
>>
>> Originate Local/01996613358 at llamada application SendDTMF
>> 12345678
>>
>>
>> The debug shows me that:
>>
>>   -- Executing [01996613358 at llamada:1]
>> Set("Local/01996613358 at llamada-1bb8;2",
>> "CALLERID(number)=7773") in new
>> stack
>>   -- Executing [01996613358 at llamada:2]
>>
>> Dial("Local/01996613358 at llamada-1bb8;2",
>> "DAHDI/g1/01996613358") in new
>> stack
>>   -- Called g1/01996613358
>> Len = 34 [ b2 af 1f c5 38 38 34 1e 01 00 01 00 60 01 0a 00
>> 02 0a 08 03
>> 10 10 99 66 31 53 f8 0a 04 04 10 77 37 00 ]
>>
>> FSN: 47 FIB 1
>> BSN: 50 BIB 1
>>> [0] MSU
>> [ b2 af 1f ]
>>       Network Indicator: 3 Priority: 0 User Part: ISUP
>> (5)
>>       [ c5 ]
>>       OPC 14544 DPC 14392 SLS 1
>>       [ 38 38 34 1e ]
>>               CIC: 1
>>
>>               [ 01 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's Category:
>>                       Category: Ordinary calling
>> subscriber (10)
>>                       [ 0a ]
>>
>> pelxsms2voice*CLTransmission Medium Requirements:
>>                       Speech (0)
>>                       [ 00 ]
>>               --VARIABLE LENGTH PARMS[1]--
>>               Called Party Number:
>>                       Nature of address: 3
>>
>>                       NI: 0
>>                       Numbering plan: 1
>>                       Address signals:
>> 01996613358#
>>                       [ 08 03 10 10 99 66 31 53
>> f8 ]
>>               --OPTIONAL PARMS--
>>
>>               Calling Party Number:
>>                       Nature of address: 4
>>                       NI: 0
>>                       Numbering plan: 1
>>                       Presentation: 0
>>                       Screening: 0
>>
>>                       Address signals: 7773
>>                       [ 0a 04 04 10 77 37 ]
>>
>> Len = 18 [ af b3 0f c5 d0 38 0e ae 01 00 06 12 34 01 29 01
>> 03 00 ]
>> FSN: 51 FIB 1
>> BSN: 47 BIB 1
>> <[0] MSU
>> [ af b3 0f ]
>>
>>       Network Indicator: 3 Priority: 0 User Part: ISUP
>> (5)
>>       [ c5 ]
>>       OPC 14392 DPC 14544 SLS 10
>>       [ d0 38 0e ae ]
>>               CIC: 1
>>               [ 01 00 ]
>>               Message Type: ACM
>>
>>               [ 06 ]
>>               --FIXED LENGTH PARMS[1]--
>>               Backward Call Indicator:
>>                       Charge indicator: 2
>>                       Called party's status
>> indicator: 0
>>                       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: 1
>>                       SCCP method indicator: 0
>>                       [ 12 34 ]
>>
>>               --OPTIONAL PARMS--
>>               Optional Backward Call Indicator:
>>                       In-band information
>> indicator: 1
>>                       Call diversion may occur
>> indicator: 1
>>                       Simple segmentation
>> indicator: 0
>>
>>                       MLPP user indicator: 0
>>                       [ 29 01 03 ]
>>
>>   -- DAHDI/1-1 is proceeding passing it to
>> Local/01996613358 at llamada-1bb8;2
>> Len = 17 [ af b4 0e c5 d0 38 0e ae 01 00 09 01 11 02 16 34
>> 00 ]
>>
>> FSN: 52 FIB 1
>> BSN: 47 BIB 1
>> <[0] MSU
>> [ af b4 0e ]
>>       Network Indicator: 3 Priority: 0 User Part: ISUP
>> (5)
>>       [ c5 ]
>>       OPC 14392 DPC 14544 SLS 10
>>       [ d0 38 0e ae ]
>>               CIC: 1
>>
>>               [ 01 00 ]
>>               Message Type: ANM
>>               [ 09 ]
>>               --OPTIONAL PARMS--
>>               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: 1
>>                       SCCP method indicator: 0
>>
>>                       [ 11 02 16 34 ]
>>
>>   -- DAHDI/1-1 answered Local/01996613358 at llamada-1bb8;2
>>   -- Launching SendDTMF(9876543210) on
>> Local/01996613358 at llamada-1bb8;1
>>  == Spawn extension (llamada, 01996613358, 2) exited
>> non-zero on
>>
>> 'Local/01996613358 at llamada-1bb8;2'
>> Len = 16 [ b4 b0 0d c5 38 38 34 1e 01 00 0c 02 00 02 81 90
>> ]
>> FSN: 48 FIB 1
>> BSN: 52 BIB 1
>>> [0] MSU
>>   -- Hungup 'DAHDI/1-1'
>> [ b4 b0 0d ]
>>       Network Indicator: 3 Priority: 0 User Part: ISUP
>> (5)
>>
>>       [ c5 ]
>>       OPC 14544 DPC 14392 SLS 1
>>       [ 38 38 34 1e ]
>>               CIC: 1
>>               [ 01 00 ]
>>               Message Type: REL
>>               [ 0c ]
>>               --VARIABLE LENGTH PARMS[1]--
>>
>>               Cause Indicator:
>>                       Coding Standard: 0
>>                       Location: 1
>>                       Cause Class: 1
>>                       Cause Subclass: 0
>>                       Cause: Normal call
>> clearing (16)
>>
>>                       [ 02 81 90 ]
>>
>> Len = 12 [ b0 b5 09 c5 d0 38 0e ae 01 00 10 00 ]
>> FSN: 53 FIB 1*CLI>
>> BSN: 48 BIB 1*CLI>
>> <[0] MSUvoice*CLI>
>> [ b0 b5 09 ]e*CLI>
>> pelxsms2Network Indicator: 3 Priority: 0 User Part: ISUP
>> (5)
>>
>> pelxsms2[ c5 ]CLI>
>> pelxsms2OPC 14392 DPC 14544 SLS 10
>> pelxsms2[ d0 38 0e ae ]
>> pelxsms2voice*CLCIC: 1
>> pelxsms2voice*CL[ 01 00 ]
>> pelxsms2voice*CLMessage Type: RLC
>> pelxsms2voice*CL[ 10 ]
>> pelxsms2voice*CLI>
>>
>> Len = 18 [ b0 b6 0f c1 d0 f8 0f 0e 11 80 87 88 89 8a 8b 8c
>> 8d 8e ]
>> FSN: 54 FIB 1
>> BSN: 48 BIB 1
>> <[0] MSU
>> [ b0 b6 0f ]
>>       Network Indicator: 3 Priority: 0 User Part:
>> STD_TEST (1)
>>       [ c1 ]
>>       OPC 14399 DPC 14544 SLS 0
>>
>>       [ d0 f8 0f 0e ]
>>       H0: 1 H1: 1
>>       [ 11 ]
>>
>> Len = 18 [ b6 b1 0f c1 3f 38 34 0e 21 80 87 88 89 8a 8b 8c
>> 8d 8e ]
>> FSN: 49 FIB 1
>> BSN: 54 BIB 1
>>> [0] MSU
>> [ b6 b1 0f ]
>>       Network Indicator: 3 Priority: 0 User Part:
>> STD_TEST (1)
>>
>>       [ c1 ]
>>       OPC 14544 DPC 14399 SLS 0
>>       [ 3f 38 34 0e ]
>>       H0: 1 H1: 2
>> pelxsms2[ 21 ]CLI>
>>
>>
>> Please, give a hand with that.
>>
>>
>> --
>> Daniel Pizarro Bustamante
>>
>>
>>
>>      ?Obt?n la mejor experiencia en la web!<
>> Descarga gratis el nuevo Internet Explorer 8. http://downloads.yahoo.com/ieak8/?l=e1
>>
>>
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>>
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>>
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> 
> 
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