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PABX isdn trunk to Call Manager no Audio

Hi All,

I have problem with our PABX trunking to Call Manager by E1, no audio hears. I found this log :

*Jul 10 04:13:12.182: voip_rtp_send_pak: Remote IP = 0; pkt dropped, type[3]

*Jul 10 04:13:12.190: //-1/xxxxxxxxxxxx/H323/cch323_ct_main: SOCK 7 Event 0x1

*Jul 10 04:13:12.190: //-1/xxxxxxxxxxxx/H323/cch323_gw_process_read_socket: owner_data=0x45DF4E98, len=23, msgPtr=0x497D41B0

*Jul 10 04:13:12.194: //-1/xxxxxxxxxxxx/H323/cch323_gw_process_read_socket: Received msg for H.245

*Jul 10 04:13:12.194: //6271/003530E5FD09/H323/cch323_get_olc_ack_instance: Received OLC_ACK1 msg olc[1] ccb olc[1]

*Jul 10 04:13:12.194: //6271/003530E5FD09/H323/h245_olc_out_sm: Received H245_EV_OLC_CFM while at state H245_OLC_OUT_STATE_AWAIT_EST

*Jul 10 04:13:12.194: //6271/003530E5FD09/H323/cch323_set_dtmf_iw_enabled: negotiated dtmf relay: 2, dtmf_iw_enabled: 0, dtmf_sccp_enabled: 0

*Jul 10 04:13:12.194: voip_rtp_set_non_rtp_call: Non-RTP call end

*Jul 10 04:13:12.194: voip_rtp_update_callinfo: RTCP enabled

*Jul 10 04:13:12.194: voip_rtp_update_local_ssrc srtp: 0 CallID: 6271 dstCallID: 6272 new ssrc: 0x9B20801

*Jul 10 04:13:12.194: voip_rtcp_get_cname: cname=0.0.0@10.4.8.1

*Jul 10 04:13:12.194: voip_rtp_update_callinfo: RTP address/port changes 0:0->A031E74:6DCA

*Jul 10 04:13:12.194: voip_rtp_update_callinfo: first_pak=TRUE, new_ssrc=0, type=3

*Jul 10 04:13:12.194:  voip_rtp_update_xmit_info

*Jul 10 04:13:12.194:  voip_rtp_update_xmit_info, dstvdbptr: 48223C2C, dstCallID 6272, gccb: 45E9FDE0, xmitFunc 416CF9C4,context 494F9778

*Jul 10 04:13:12.194:  voip_rtp_update_xmit_info Xmit Info node current values xmit_info->dstvdbptr: 48223C2C, xmit_info->dstCallID 6272, xmit_info->xmitFunc 416CF9C4, xmit_info->context 494F9778

*Jul 10 04:13:12.194:  voip xmit info count: 1

*Jul 10 04:13:12.194: //6271/003530E5FD09/H323/cch323_rtp_open_notify: Entry

*Jul 10 04:13:12.194: voip_rtp_start_disc_timer voip_rtp_start_disc_timer: Timer not started 0, 0

could you help me, what causes this problem happen?

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