[asterisk-ss7] No Audio

Robert Thomas thomcr at gmail.com
Tue Jul 12 03:34:48 CDT 2011


The fact that you start using voice circuit #2m doesnt necesarily means they
start counting from CIC #2.

They could start CIC 1, in channel 2 and always be off by 1. You can try
configuring with cicbegins with 1.

On Tue, Jul 12, 2011 at 3:31 AM, Trevor Francis <
trevor.francis at tgrahamcapital.com> wrote:

> I have been told by the telco the following
>
> SLC= 0
> Signaling link = TS1 on 1st E1
> Voice Circuits = 2 - 31, 33-63, 65-95, 97-127
>
> What else am I missing?
> --
>
> On Jul 12, 2011, at 3:26 AM, Robert Thomas wrote:
>
> So you have the D channels Aligned and the LSSU go in both direction. That
> does not guarantee the CIC are aligned.
>
> On Tue, Jul 12, 2011 at 3:25 AM, Trevor Francis <
> trevor.francis at tgrahamcapital.com> wrote:
>
>> MTP2 link up (SLC 0)
>> --- SS7 Up ---
>> Resetting CICs 2 to 31
>> Resetting CICs 33 to 63
>> Resetting CICs 65 to 95
>> Resetting CICs 97 to 127
>> Got reset acknowledgement from CIC 2 to 31.
>> Got reset acknowledgement from CIC 33 to 63.
>> Got reset acknowledgement from CIC 65 to 95.
>> Got reset acknowledgement from CIC 97 to 127.
>>
>> They are talking to each other....
>>
>> --
>> Trevor G. Francis
>> Managing Member
>> trevor.francis at tgrahamcapital.com
>>
>> Ph. +1 405.445.4020
>> Fx. +1 405.445.4021
>> P.O Box 54771
>> Oklahoma City, OK 73154
>> MSN: trevor.francis at fiberhaus.com
>> Personal emails should be addressed to: tfrancis at fas.harvard.edu
>> --
>>
>> On Jul 12, 2011, at 3:19 AM, James zhu wrote:
>>
>> hi:
>> yes, it should be a problem with CIC mismatched.
>>
>> Best regards,
>> James.zhu
>> Doing asterisk/PRI/ss7/dahdi, linux, asterisk cards,
>> gateway(fxs/fxo/pri<->SIP).
>> website: www.voipviews.com
>>
>>
>> ------------------------------
>> Date: Tue, 12 Jul 2011 03:17:22 -0500
>> From: thomcr at gmail.com
>> To: asterisk-ss7 at lists.digium.com
>> Subject: Re: [asterisk-ss7] No Audio
>>
>> How do you know you have your CICs aligned?
>>
>> You and the TELCO could start counting from the same place, however the E1
>> may be crossed. This happend to me when 2nd E1 of the TELCO was the 3rd for
>> me.  The cal would be established on CIC 33 for Example on E1 #2, but my
>> server was reciving it on #3.
>>
>> I would recommend you to disconnect all your E1 and confirm with the
>> alarms the TELCO has them on the same order than you. Or just try the
>> different combination.
>>
>> As well double check your CIC count to make sure it matched the TELCO.
>>
>> On Tue, Jul 12, 2011 at 3:08 AM, Trevor Francis <
>> trevor.francis at tgrahamcapital.com> wrote:
>>
>> We have gone round and round on getting our ss7 link up. We can get the
>> cics to align and the signaling link to come up. However, when we dial there
>> is no audio in either direction.
>>
>> Chan_dahdi:
>>
>>
>> [trunkgroups]
>> [channels]
>> context=default
>> usecallerid=yes
>> hidecallerid=no
>> callwaiting=no
>> usecallingpres=yes
>> threewaycalling=no
>> transfer=yes
>> canpark=no
>> cancallforward=no
>> callreturn=no
>> echocancel=yes
>> echocancelwhenbridged=yes
>> relaxdtmf=yes
>> rxgain=0.0
>> txgain=0.0
>> immediate=no
>> prematureaudio=no
>> language=en
>> group=1
>> signalling = ss7
>> ss7type = itu
>>
>>
>> linkset = 1
>> pointcode=6314 ; switch point code
>> adjpointcode=12450 ; peer point code.
>> defaultdpc=12450 ; per point code.
>> networkindicator=international
>> slc=0
>> ;ss7_internationalprefix = 00
>> ;ss7_nationalprefix = 0
>> ;ss7_subscriberprefix =
>> ;ss7_unknownprefix =
>>
>> mtp2=1
>> sigchan=1
>> context=default
>> cicbeginswith = 2
>> channel = 2-31
>> cicbeginswith = 33
>> channel = 32-62
>> cicbeginswith = 65
>> channel = 63-93
>> cicbeginswith = 97
>> channel = 94-124
>>
>> Dahdi system.conf
>>
>> span=1,1,0,ccs,hdb3
>> bchan=2-31
>> dchan=1
>> echocanceller=mg2,2-31
>>
>> span=2,0,0,ccs,hdb3
>> bchan=32-62
>> echocanceller=mg2,32-62
>>
>> span=3,0,0,ccs,hdb3
>> bchan=63-93
>> echocanceller=mg2,63-93
>>
>> span=4,0,0,ccs,hdb3
>> bchan=94-124
>> echocanceller=mg2,94-124
>>
>> loadzone = fr
>> defaultzone = fr
>>
>>
>> Any ideas?
>>
>> Running  Asterisk 1.8.4.4, DAHDI Version: 2.4.1.2 Echo Canceller: MG2,
>> libss7 version: 1.0.2
>>
>> --
>>
>>
>> --
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>>
>>
>> --
>> Robert
>>
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>
>
>
> --
> Robert
> --
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-- 
Robert
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