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<p style="font-family:Calibri,Helvetica,sans-serif; font-size:16px"><span>Hello everyone,</span><br>
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<div>I have a issue with the A10Xe sangoma digital cards, using the following versions of WANPIPE 7.0.23, DAHDI 2.11.1, OpenR2 1.3.3 and Asterisk certified 13.13-cert9, on CentOS 7, to receive calls with CAS - MFC/R2 signaling on E1 trunks from Telefónica de
Argentina.</div>
<div>The phenomenon is that the incoming calls in some cases are handled correctly but in others the same call enters into two channels simultaneously, and a few milliseconds later are released from the TELCO without apparently reaching to exchange R2 signals.</div>
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<div>In the asterisk console the following is observed:</div>
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<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">New MFC/R2 call detected on chan 4.</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">New MFC/R2 call detected on chan 5.</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">Chan 4 - Far end disconnected. Reason: Normal Clearing</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">MFC/R2 call disconnected on channel 4</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">Chan 5 - Far end disconnected. Reason: Normal Clearing</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">MFC/R2 call disconnected on channel 5</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">MFC/R2 call end on channel 4</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">MFC/R2 call end on channel 5</div>
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</div>
<span style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">OpenR2 call files:</span>
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<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:236] [Thread: 140405976749824] [Chan 4] - Call started at Tue Mar 13 12:22:03 2018 on chan 4 [openr2 version 1.3.3, revision (release)]</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:236] [Thread: 140405976749824] [Chan 4] - Initialized R2 MF detector</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:236] [Thread: 140405976749824] [Chan 4] - CAS Tx >> [SEIZE ACK] 0x0C</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:236] [Thread: 140405976749824] [Chan 4] - CAS Raw Tx >> 0x0D</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:277] [Thread: 140405976749824] [Chan 4] - Bits changed from 0x00 to 0x08</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:277] [Thread: 140405976749824] [Chan 4] - CAS Rx << [CLEAR FORWARD] 0x08</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:277] [Thread: 140405976749824] [Chan 4] - Far end disconnected. Reason: Normal Clearing</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:277] [Thread: 140405976749824] [Chan 4] - Call ended</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:277] [Thread: 140405976749824] [Chan 4] - Attempting to cancel timer timer 0</div>
<div style="font-size:16px; font-family:Calibri,Helvetica,sans-serif">[12:22:03:277] [Thread: 140405976749824] [Chan 4] - Cannot cancel timer 0</div>
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<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:236] [Thread: 140405976241920] [Chan 5] - Call started at Tue Mar 13 12:22:03 2018 on chan 5 [openr2 version 1.3.3, revision (release)]</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:236] [Thread: 140405976241920] [Chan 5] - Initialized R2 MF detector</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:236] [Thread: 140405976241920] [Chan 5] - CAS Tx >> [SEIZE ACK] 0x0C</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:236] [Thread: 140405976241920] [Chan 5] - CAS Raw Tx >> 0x0D</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:277] [Thread: 140405976241920] [Chan 5] - Bits changed from 0x00 to 0x08</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:277] [Thread: 140405976241920] [Chan 5] - CAS Rx << [CLEAR FORWARD] 0x08</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:277] [Thread: 140405976241920] [Chan 5] - Far end disconnected. Reason: Normal Clearing</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:277] [Thread: 140405976241920] [Chan 5] - Call ended</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:277] [Thread: 140405976241920] [Chan 5] - Attempting to cancel timer timer 0</div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">[12:22:03:277] [Thread: 140405976241920] [Chan 5] - Cannot cancel timer 0</div>
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<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px"><span style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">Some additional information:</span><br>
</div>
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</span></div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px"><span style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">wanpipe2.conf:</span></div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px"><span style="font-family:Calibri,Helvetica,sans-serif; font-size:16px"><br>
</span></div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px"><span style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">
<div>[devices]</div>
<div>wanpipe2 = WAN_AFT_TE1, Comment</div>
<div><br>
</div>
<div>[interfaces]</div>
<div>w2g1 = wanpipe2, , TDM_VOICE, Comment</div>
<div><br>
</div>
</span></div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px"><span style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">
<div>[wanpipe2]</div>
<div>CARD_TYPE = AFT</div>
<div>S514CPU = A</div>
<div>CommPort = PRI</div>
<div>AUTO_PCISLOT = NO</div>
<div>PCISLOT = 4</div>
<div>PCIBUS = 3</div>
<div>FE_MEDIA = E1</div>
<div>FE_LCODE = HDB3</div>
<div>FE_FRAME = NCRC4</div>
<div>FE_LINE = 2</div>
<div>TE_CLOCK = NORMAL</div>
<div>TE_REF_CLOCK = 0</div>
<div>TE_SIG_MODE = CAS</div>
<div>TE_HIGHIMPEDANCE = NO</div>
<div>TE_RX_SLEVEL = 430</div>
<div>HW_RJ45_PORT_MAP = DEFAULT</div>
<div>LBO = 120OH</div>
<div>FE_TXTRISTATE = NO</div>
<div>MTU = 1500</div>
<div>UDPPORT = 9000</div>
<div>TTL = 255</div>
<div>IGNORE_FRONT_END = NO</div>
<div>TDMV_SPAN = 2</div>
<div>TDMV_DCHAN = 0</div>
<div>TE_AIS_MAINTENANCE = NO #NO: defualt YES: Start port in AIS Blue Alarm and keep line down</div>
<div> #wanpipemon -i w1g1 -c Ttx_ais_off to disable AIS maintenance mode</div>
<div> #wanpipemon -i w1g1 -c Ttx_ais_on to enable AIS maintenance mode</div>
<div>TDMV_HW_DTMF = NO # YES: receive dtmf events from hardware</div>
<div>TDMV_HW_FAX_DETECT = NO # YES: receive fax 1100hz events from hardware</div>
<div>HWEC_OPERATION_MODE = OCT_NORMAL # OCT_NORMAL: echo cancelation enabled with nlp (default)</div>
<div> # OCT_SPEECH: improves software tone detection by disabling NLP (echo possible)</div>
<div> # OCT_NO_ECHO:disables echo cancelation but allows VQE/tone functions.</div>
<div>HWEC_DTMF_REMOVAL = NO # NO: default YES: remove dtmf out of incoming media (must have hwdtmf enabled)</div>
<div>HWEC_NOISE_REDUCTION = NO # NO: default YES: reduces noise on the line - could break fax</div>
<div>HWEC_ACUSTIC_ECHO = NO # NO: default YES: enables acustic echo cancelation</div>
<div>HWEC_NLP_DISABLE = NO # NO: default YES: guarantees software tone detection (possible echo)</div>
<div>HWEC_TX_AUTO_GAIN = 0 # 0: disable -40-0: default tx audio level to be maintained (-20 default)</div>
<div>HWEC_RX_AUTO_GAIN = 0 # 0: disable -40-0: default tx audio level to be maintained (-20 default)</div>
<div>HWEC_TX_GAIN = 0 # 0: disable -24-24: db values to be applied to tx signal</div>
<div>HWEC_RX_GAIN = 0 # 0: disable -24-24: db values to be applied to tx signal</div>
<div><br>
</div>
<div>[w2g1]</div>
<div>ACTIVE_CH = ALL</div>
<div>TDMV_HWEC = NO</div>
<div>MTU = 8</div>
<div><br>
</div>
dahdi/system.conf:</span></div>
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</span></div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px"><span style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">
<div>loadzone=ar</div>
<div>defaultzone=ar</div>
<div><br>
</div>
<div>
<div>#Sangoma A102 port 1 [slot:4 bus:3 span:1] <wanpipe1></div>
<div>span=1,1,0,ccs,hdb3</div>
<div>bchan=1-15,17-31</div>
<div>hardhdlc=16</div>
<div><br>
</div>
</div>
<div>#Sangoma A102 port 2 [slot:4 bus:3 span:2] <wanpipe2></div>
<div>span=2,2,0,cas,hdb3</div>
<div>cas=32-46:1101</div>
<div>#dchan=47</div>
<div>cas=48-62:1101</div>
<div><br>
</div>
<div>chan_dahdi.conf:</div>
<div><br>
</div>
<div>
<div>[trunkgroups]</div>
<div><br>
</div>
<div>[channels]</div>
<div>context=default</div>
<div>usecallerid=yes</div>
<div>hidecallerid=no</div>
<div>callwaiting=yes</div>
<div>usecallingpres=yes</div>
<div>callwaitingcallerid=yes</div>
<div>threewaycalling=yes</div>
<div>transfer=yes</div>
<div>canpark=yes</div>
<div>cancallforward=yes</div>
<div>callreturn=yes</div>
<div>echocancel=no</div>
<div>echocancelwhenbridged=no</div>
<div>relaxdtmf=yes</div>
<div>rxgain=0.0</div>
<div>txgain=0.0</div>
<div>group=1</div>
<div>callgroup=1</div>
<div>pickupgroup=1</div>
<div>immediate=no</div>
<div><br>
</div>
<div>;Sangoma A102 port 1 [slot:4 bus:3 span:1] <wanpipe1></div>
<div>switchtype=euroisdn</div>
<div>context=trunk_1</div>
<div>group=1</div>
<div>echocancel=no</div>
<div>signalling=pri_cpe</div>
<div>channel =>1-15,17-31</div>
<div><br>
</div>
<div>
<div>;Sangoma A102 port 2 [slot:4 bus:3 span:2] <wanpipe2></div>
<div>context=trunk_2</div>
<div>group=1</div>
<div>echocancel=no</div>
<div>signalling=mfcr2</div>
<div>mfcr2_variant=ar</div>
<div>mfcr2_get_ani_first=no</div>
<div>mfcr2_max_ani=0</div>
<div>mfcr2_max_dnis=4</div>
<div>mfcr2_category=national_subscriber</div>
<div>mfcr2_mfback_timeout=-1</div>
<div>mfcr2_immediate_accept=yes</div>
<div>mfcr2_skip_category=yes</div>
<div>;mfcr2_metering_pulse_timeout=500</div>
<div>mfcr2_forced_release=yes</div>
<div>mfcr2_call_files=yes</div>
<div>mfcr2_logdir=log</div>
<div>loglevel=all</div>
<div>mfcr2_logging=all</div>
<div>;mfcr2_advanced_protocol_file=/etc/asterisk/r2proto.conf</div>
<div></div>
<div>hidecallerid=yes</div>
<div>channel => 32-46,48-62</div>
<div><br>
</div>
</div>
</div>
<div><br>
</div>
</span></div>
<div style="font-family:Calibri,Helvetica,sans-serif; font-size:16px">
<div>I have already checked that there are no clock issues, frame errors, fifo overruns errors, toggle acpi on/off, set timers.cas_persistence_check, <span><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 16px;">mfcr2_metering_pulse_timeout</span></span>,
and other tests.</div>
<div><br>
</div>
<div><span>I hope you can help me to identify the problem, thanks in advance.</span></div>
<div><span><br>
</span></div>
<div><span><span>Regards</span>, </span></div>
<div><span>Ezequiel Quadri</span></div>
</div>
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