[asterisk-ss7] No Audio on SS7 calls to Remote PRIs

[dave george]

I got this working properly.  The basic problem was CIC lineup/mapping.  Our
mux had the E1s mapped incorrectly.  So what we thought was E1-1 was E1-5.

 

 

Thanks,

Dave

 

From: asterisk-ss7-bounces at lists.digium.com
[mailto:asterisk-ss7-bounces at lists.digium.com] On Behalf Of Abdul Basit
Sent: Tuesday, November 09, 2010 3:41 PM
To: asterisk-ss7 at lists.digium.com
Subject: Re: [asterisk-ss7] No Audio on SS7 calls to Remote PRIs

 

Please past your chan_dahdi.conf and system.conf.

 

Also check if you have ulaw selected in your sip phone.

 

 

On Wed, Nov 10, 2010 at 12:35 AM, dave george <dgeorge at teletoneinc.com>
wrote:

I wanted to add that I checked and my CICs are lined up correctly on both
sides.  I am using Asterisk 1.6.2.13.

 

Thanks,

Dave

 

From: asterisk-ss7-bounces at lists.digium.com
[mailto:asterisk-ss7-bounces at lists.digium.com] On Behalf Of dave george
Sent: Tuesday, November 09, 2010 9:10 AM
To: asterisk-ss7 at lists.digium.com
Subject: Re: [asterisk-ss7] No Audio on SS7 calls to Remote PRIs

 

Hi Guys,

 

I am having a similar issue with no audio.  Other end is an ericsson switch.
See the logs below.  I can make and receive calls fine but no audio.   I
checked my CIC and they are lined up well.  I run dahdi_monitor  but I only
see activity from my end (softphone registered on asterisk).  Nothing from
the far end.  One strange thing I notice is the # sign at the end of the
numbers in the logs.

Example Address signals: 5339427#

 

 

libss7 version: 1.0.2

DAHDI Version: 2.4.0 Echo Canceller: MG2

 

 

        Network Indicator: 2 Priority: 0 User Part: ISUP (5)

        [ 85 ]

        OPC 2500 DPC 5352 SLS 0

        [ e8 14 71 02 ]

                CIC: 400

                [ 90 01 ]

                Message Type: CPG

                [ 2c ]

                --FIXED LENGTH PARMS[1]--

                Event Information:

                        ALERTING

                        [ 01 ]

                --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 ]

                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/63-1 is ringing

Len = 25 [ ba 9c 16 85 e8 14 71 02 90 01 09 01 11 02 04 34 2d 02 00 5a 39 02
2d c0 00 ]

FSN: 28 FIB 1

BSN: 58 BIB 1

<[1] MSU

[ ba 9c 16 ]

        Network Indicator: 2 Priority: 0 User Part: ISUP (5)

        [ 85 ]

        OPC 2500 DPC 5352 SLS 0

        [ e8 14 71 02 ]

                CIC: 400

                [ 90 01 ]

                Message Type: ANM

                [ 09 ]

                --OPTIONAL PARMS--

                Backward Call Indicator:

                        Charge indicator: 0

                        Called party's status indicator: 1

                        Called party's category indicator: 0

                        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 04 34 ]

                Unknown Parameter (0x2d):

                        [ 00 5a ]

                Parameter Compatibility Information:

                        [ 39 02 2d c0 ]

 

Unhandled optional parameter 0x2d 'Unknown'

[0x0 0x5a ]

Unhandled optional parameter 0x39 'Parameter Compatibility Information'

[0x2d 0xc0 ]

    -- DAHDI/63-1 answered SIP/4735211000-00000036 

 

 

localhost*CLI> localhost*CLI>

 

 

                                        #*
( # = Audio Level  * = Max Audio Hit )

<----------------(RX)---------------->
<----------------(TX)---------------->

                                        ###################       *
Rx:    16 (   16) Tx:  4570 ( 4850)

                                        ########################*
Rx:    16 (   16) Tx:  1447 ( 1474)

                                        #*
Rx:    16 (   16) Tx:    98 (   98)

 

 

Thanks,

Dave

 


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Regards,


Abdul Basit | +92 32 1416 4196

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