No audio with CON message

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Hello,

I'm having problem when I make a call, and I receive a CON from Telco. All calls with this scenario has no audio.

If the Telco proceed the call with ACM, I don't have any issue.

Is there any configuration to solve this issue?

Version: Asterisk 1.8.10.1
libss7 version: 1.0.2

LOGs: 

??? -- Called DAHDI/r3/10315
[3] Len = 34 [ c2 ab 1f 85 99 8f dc 70 07 00 01 00 60 01 0a 00 02 07 05 84 10 01 13 05 0a 07 04 13 71 53 00 01 20 00 ]
[3] FSN: 43 FIB 1
[3] BSN: 66 BIB 1
[3] >[1] MSU
[3] [ c2 ab 1f ]
[3]???? Network Indicator: 2 Priority: 0 User Part: ISUP (5)
[3]???? [ 85 ]
[3]???? OPC 882 DPC 3993 SLS 7
[3]???? [ 99 8f dc 70 ]
[3]???????????? CIC: 7
[3]???????????? [ 07 00 ]
[3]???????????? Message Type: IAM
[3]???????????? [ 01 ]
[3]???????????? --FIXED LENGTH PARMS[4]--
[3]???????????? Nature of Connection Indicator:
[3]???????????????????? Satellites in connection: 0
[3]???????????????????? Continuity Check: Check not required (0)
[3]???????????????????? Outgoing half echo control device: not included (0)
[3]???????????????????? [ 00 ]
[3]???????????? Forward Call Indicators:
[3]???????????????????? Nat/Intl Call Ind: call to be treated as a national call (0)
[3]???????????????????? End to End Method Ind: no end-to-end method(s) available (0)
[3]???????????????????? Interworking Ind: no interworking encountered (0)
[3]???????????????????? End to End Info Ind: no end-to-end information available (0)
[3]???????????????????? ISDN User Part Ind: ISDN user part used all the way (1)
[3]???????????????????? ISDN User Part Pref Ind: ISDN user part not preferred all the way (1)
[3]???????????????????? ISDN Access Ind: originating access ISDN (1)
[3]???????????????????? SCCP Method Ind: no indication (0)
[3]???????????????????? [ 60 01 ]
[3]???????????? Calling Party's Category:
[3]???????????????????? Category: Ordinary calling subscriber (10)
[3]???????????????????? [ 0a ]
[3]???????????? Transmission Medium Requirements:
[3]???????????????????? Speech (0)
[3]???????????????????? [ 00 ]
[3]???????????? --VARIABLE LENGTH PARMS[1]--
[3]???????????? Called Party Number:
[3]???????????????????? Nature of address: 4
[3]???????????????????? NI: 0
[3]???????????????????? Numbering plan: 1
[3]???????????????????? Address signals: 10315
[3]???????????????????? [ 05 84 10 01 13 05 ]
[3]???????????? --OPTIONAL PARMS--
[3]???????????? Calling Party Number:
[3]???????????????????? Nature of address: 4
[3]???????????????????? NI: 0
[3]???????????????????? Numbering plan: 1
[3]???????????????????? Presentation: 0
[3]???????????????????? Screening: 3
[3]???????????????????? Address signals: 1734001002
[3]???????????????????? [ 0a 07 04 13 71 53 00 01 20 ]
[3]
[3] Len = 14 [ ab c3 0b 85 72 43 e6 73 07 00 07 05 00 00 ]
[3] FSN: 67 FIB 1
[3] BSN: 43 BIB 1
[3] <[1] MSU
[3] [ ab c3 0b ]
[3]???? Network Indicator: 2 Priority: 0 User Part: ISUP (5)
[3]???? [ 85 ]
[3]???? OPC 3993 DPC 882 SLS 7
[3]???? [ 72 43 e6 73 ]
[3]???????????? CIC: 7
[3]???????????? [ 07 00 ]
[3]???????????? Message Type: Unknown
[3]???????????? [ 07 ]
[3]???????????? --FIXED LENGTH PARMS[1]--
[3]???????????? Backward Call Indicator:
[3]???????????????????? Charge indicator: 1
[3]???????????????????? Called party's status indicator: 1
[3]???????????????????? Called party's category indicator: 0
[3]???????????????????? End to End method indicator: 0
[3]???????????????????? Interworking indicator: 0
[3]???????????????????? End to End information indicator: 0
[3]???????????????????? ISDN user part indicator: 0
[3]???????????????????? Holding indicator: 0
[3]???????????????????? ISDN access indicator: 0
[3]???????????????????? Echo control device indicator: 0
[3]???????????????????? SCCP method indicator: 0
[3]???????????????????? [ 05 00 ]
[3]
Linkset 3: Processing event: ISUP_EVENT_CON
??? -- DAHDI/69-1 answered SIP/1002-00000557

-- NO AUDIO AFTER THIS POINT. --


Thanks a lot,

--
Marcus Vinicius
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