[asterisk-r2] Some trouble with CANTV R2 in Venezuela

Andres Maduro andres at iconos.com.ve
Fri May 20 00:11:16 CDT 2016


Hi everybody, hope you are doing very well.

I have been running for quite some time an Asterisk 1.8.xx callcenter with CANTV MFC-R2 in Venezuela.

Callcenter agents have been reporting for a long time that some inbound calls have no audio. We debug the R2 signalling from CANTV side and we found that when call is answered, some times Asterisk sends a CLEAR BACK signal to CANTV and when operator answer, they don’t see audio as the call is already gone.

The sw versiones we are using are:

Asterisk 1.8.24 (I am upgrading to 1.8.28 latest)
Openr2-1.3.3
dahdi-linux-complete-2.6.2+2.6.2

At the end of this message, you can find the CANTV capture of MFC-R2 signalling when an inbound call shows the CLAR BACK behavior.

Could this be related to one of the above versiones ? The openr2 libraries I believe are at the latest version.

Any help is greatly appreciated.

Thanks in advance.
AM

———————— CANTV logs -------------------------------
 
24BLM:
 
RECORDING OF TELEPHONY SIGNALS RECORDED RESULTS
        RI                :  0
        TEST OBJECT       : BL3DM-770
        ROUTE             : -
        GROUP NUMBER      : 2127010311
        SUBROUTE          : I-0
        CONNECTED ROUTE   : CS
        GLOBAL STATE      : BUSY
        START TIME        : 1008
        FIRST SIGNAL TIME : -
        
        TIME  TDIFF   SIGNAL                   DIR BITS      RP ST. DEVICE
        
        27240 0000000                          S   0000 1000 H'28   BL3DM-770
        27240 0000000                          R   0000 1010 H'28   BL3DM-770
 
 
        
         1 MINUTE
 
        
        33000 0065760                          R   0000 1011 H'28   BL3DM-770
        33030 0000030 CLEAR BACK               R   0000 1011 H'27   BL3DM-770
 
 
        
         2 MINUTES
 
 
        
        30590 0057560 CLEAR FORWARD            S   0000 1001 H'2B   BL3DM-770
        30610 0000020                          R   0000 1001 H'2B   BL3DM-770
        30840 0000230                          R   0000 1001 H'2C   BL3DM-770
        30860 0000020                          R   0000 1001 H'21   BL3DM-770
        30860 0000000 IDLE                     S   0000 1001 H'21   BL3DM-770
        32400 0001540                          R   0000 1001 H'22   BL3DM-770
        32400 0000000 SEIZURE                  S   0000 1000 H'22   BL3DM-770
        32440 0000040                          R   0000 1011 H'22   BL3DM-770
        32450 0000010 GROUP I 3                S   0000 0011 H'1    CSRR2-38
        32460 0000010                          R   0000 1011 H'24   BL3DM-770
        32530 0000070 A5                       R   0000 0101 H'1    CSRR2-38
        32530 0000000 GROUP II 1               S   0000 0001 H'5    CSRR2-38
        32670 0000140 A9                       R   0000 1001 H'5    CSRR2-38
        32670 0000000 GROUP I 4                S   0000 0100 H'7    CSRR2-38
        32830 0000160 A9                       R   0000 1001 H'7    CSRR2-38
        32830 0000000 GROUP I 1                S   0000 0001 H'7    CSRR2-38
        32990 0000160 A9                       R   0000 1001 H'7    CSRR2-38
        32990 0000000 GROUP I 4                S   0000 0100 H'7    CSRR2-38
        33130 0000140 A9                       R   0000 1001 H'7    CSRR2-38
        33130 0000000 GROUP I 2                S   0000 0010 H'7    CSRR2-38
        33270 0000140 A9                       R   0000 1001 H'7    CSRR2-38
        33270 0000000 GROUP I 10               S   0000 1010 H'7    CSRR2-38
        33430 0000160 A9                       R   0000 1001 H'7    CSRR2-38
        33430 0000000 GROUP I 1                S   0000 0001 H'7    CSRR2-38
        33590 0000160 A9                       R   0000 1001 H'7    CSRR2-38
        33590 0000000 GROUP I 2                S   0000 0010 H'7    CSRR2-38
        33760 0000170 A9                       R   0000 1001 H'7    CSRR2-38
        33760 0000000 GROUP I 2                S   0000 0010 H'7    CSRR2-38
        33910 0000150 A9                       R   0000 1001 H'7    CSRR2-38
        33910 0000000 GROUP I 4                S   0000 0100 H'7    CSRR2-38
        34070 0000160 A9                       R   0000 1001 H'7    CSRR2-38
        34070 0000000 GROUP I 6                S   0000 0110 H'7    CSRR2-38
        34210 0000140 A1                       R   0000 0001 H'7    CSRR2-38
        34210 0000000 GROUP I 1                S   0000 0001 H'1    CSRR2-38
        34370 0000160 A1                       R   0000 0001 H'1    CSRR2-38
        34370 0000000 GROUP I 1                S   0000 0001 H'1    CSRR2-38
        34530 0000160 A3                       R   0000 0011 H'1    CSRR2-38
        34530 0000000 GROUP II 1               S   0000 0001 H'4    CSRR2-38
        34690 0000160 B6                       R   0000 0110 H'4    CSRR2-38
        34890 0000200                          R   0000 1010 H'24   BL3DM-770
        34910 0000020 ANSWER                   R   0000 1010 H'26   BL3DM-770
        34950 0000040                          R   0000 1010 H'28   BL3DM-770
        54120 0019170                          R   0000 1011 H'28   BL3DM-770
        54140 0000020 CLEAR BACK               R   0000 1011 H'27   BL3DM-770
        
         3 MINUTES
 
        
         4 MINUTES
        
        02360 0016730                          R   0000 1001 H'22   BL3DM-770
        02360 0000000 SEIZURE                  S   0000 1000 H'22   BL3DM-770
        02390 0000030                          R   0000 1011 H'22   BL3DM-770
        02410 0000020 GROUP I 3                S   0000 0011 H'1    CSRR2-45
        02410 0000000                          R   0000 1011 H'24   BL3DM-770
        02470 0000060 A5                       R   0000 0101 H'1    CSRR2-45
        02470 0000000 GROUP II 1               S   0000 0001 H'5    CSRR2-45
        02610 0000140 A9                       R   0000 1001 H'5    CSRR2-45
        02610 0000000 GROUP I 4                S   0000 0100 H'7    CSRR2-45
        02790 0000180 A9                       R   0000 1001 H'7    CSRR2-45
        02790 0000000 GROUP I 1                S   0000 0001 H'7    CSRR2-45
        02950 0000160 A9                       R   0000 1001 H'7    CSRR2-45
        02950 0000000 GROUP I 4                S   0000 0100 H'7    CSRR2-45
        03090 0000140 A9                       R   0000 1001 H'7    CSRR2-45
        03090 0000000 GROUP I 10               S   0000 1010 H'7    CSRR2-45
        03250 0000160 A9                       R   0000 1001 H'7    CSRR2-45
        03250 0000000 GROUP I 4                S   0000 0100 H'7    CSRR2-45
        03390 0000140 A9                       R   0000 1001 H'7    CSRR2-45
        03390 0000000 GROUP I 2                S   0000 0010 H'7    CSRR2-45
        03560 0000170 A9                       R   0000 1001 H'7    CSRR2-45
        03560 0000000 GROUP I 10               S   0000 1010 H'7    CSRR2-45
        03710 0000150 A9                       R   0000 1001 H'7    CSRR2-45
        03710 0000000 GROUP I 3                S   0000 0011 H'7    CSRR2-45
        03870 0000160 A9                       R   0000 1001 H'7    CSRR2-45
        03870 0000000 GROUP I 5                S   0000 0101 H'7    CSRR2-45
        04010 0000140 A9                       R   0000 1001 H'7    CSRR2-45
        04010 0000000 GROUP I 7                S   0000 0111 H'7    CSRR2-45
        04150 0000140 A1                       R   0000 0001 H'7    CSRR2-45
        04150 0000000 GROUP I 1                S   0000 0001 H'1    CSRR2-45
        04310 0000160 A1                       R   0000 0001 H'1    CSRR2-45
        04310 0000000 GROUP I 1                S   0000 0001 H'1    CSRR2-45
        04490 0000180 A3                       R   0000 0011 H'1    CSRR2-45
        04490 0000000 GROUP II 1               S   0000 0001 H'4    CSRR2-45
        04650 0000160 B6                       R   0000 0110 H'4    CSRR2-45
        04850 0000200                          R   0000 1010 H'27   BL3DM-770
        04870 0000020 ANSWER                   R   0000 1010 H'28   BL3DM-770
        12890 0008020                          R   0000 1011 H'28   BL3DM-770
        12920 0000030 CLEAR BACK               R   0000 1011 H'27   BL3DM-770
                                                                      
 
 
28BLM:
 
 
RECORDING OF TELEPHONY SIGNALS RECORDED RESULTS
        RI                :  0
        TEST OBJECT       : BL3DM-900
        ROUTE             : -
        GROUP NUMBER      : 2127010311
        SUBROUTE          : I-0
        CONNECTED ROUTE   : CS
 
        GLOBAL STATE      : BUSY
        START TIME        : 1022
        FIRST SIGNAL TIME : -
        
        TIME  TDIFF   SIGNAL                   DIR BITS      RP ST. DEVICE
        
        14770 0000000                          S   0000 1000 H'28   BL3DM-900
        14770 0000000                          R   0000 1010 H'28   BL3DM-900
        
         1 MINUTE
 
        
         2 MINUTES
 
 
        
        13000 0118230 CLEAR FORWARD            S   0000 1001 H'2B   BL3DM-900
        13150 0000150                          R   0000 1001 H'2B   BL3DM-900
        13250 0000100                          R   0000 1001 H'2C   BL3DM-900
        13280 0000030                          R   0000 1001 H'21   BL3DM-900
        13280`8800000 IDLE                     S   0000 1001 H'21   BL3DM-900
        22790 0009510                          R   0000 1001 H'22   BL3DM-900
        22790 0000000 SEIZURE                  S   0000 1000 H'22   BL3DM-900
        22800 0000010                          R   0000 1011 H'22   BL3DM-900
        22810 0000010 GROUP I 3                S   0000 0011 H'1    CSRR2-49
        22820 0000010                          R   0000 1011 H'24   BL3DM-900
        22880 0000060 A5                       R   0000 0101 H'1    CSRR2-49
        22880 0000000 GROUP II 1               S   0000 0001 H'5    CSRR2-49
        23030 0000150 A9                       R   0000 1001 H'5    CSRR2-49
        23030 0000000 GROUP I 4                S   0000 0100 H'7    CSRR2-49
        23190 0000160 A9                       R   0000 1001 H'7    CSRR2-49
        23190 0000000 GROUP I 1                S   0000 0001 H'7    CSRR2-49
        23320 0000130 A9                       R   0000 1001 H'7    CSRR2-49
        23320 0000000 GROUP I 6                S   0000 0110 H'7    CSRR2-49
        23480 0000160 A9                       R   0000 1001 H'7    CSRR2-49
                  R   0000 
1001 H'7    CSRR2-49
        23910 0000000 GROUP I 9                S   0000 1001 H'7    CSRR2-49
        24070 0000160 A9                       R   0000 1001 H'7    CSRR2-49
 
0000 0001 H'1    CSRR2-49
        24650 0000000 GROUP I 1                S   0000 0001 H'1    CSRR2-49
        24790 0000140 A3                       R   0000 0011 H'1    CSRR2-49
        24790 0000000 GROUP II 1               S   0000 0001 H'4    CSRR2-49
        24950 0000160 B6                       R   0000 0110 H'4    CSRR2-49
        25140 0000190                          R   0000 1010 H'24   BL3DM-900
        25160 0000020 ANSWER                   R   0000 1010 H'26   BL3DM-900
        25240 0000080                          R   0000 1010 H'28   BL3DM-900
        38480 0013240                          R   0000 1011 H'28   BL3DM-900
        38500 0000020 CLEAR BACK               R   0000 1011 H'27   BL3DM-900
 
        
         3 MINUTES
 
        
        06970 0028470 CLEAR FORWARD            S   0000 1001 H'2B   BL3DM-900
        07010 0000040                          R   0000 1001 H'2B   BL3DM-900
        WO      2912BMOAS641725   AT-85           TIME 160505 1025  PAGE    2
        07220 0000210                          R   0000 1001 H'2C   BL3DM-900
        07250 0000030                          R   0000 1001 H'21   BL3DM-900
        07250 0000000 IDLE                     S   0000 1001 H'21   BL3DM-900
 
        31030 0023780                          R   0000 1001 H'22   BL3DM-900
        31030 0000000 SEIZURE                  S   0000 1000 H'22   BL3DM-900
        31060 0000030                          R   0000 1011 H'22   BL3DM-900
        31080 0000020 GROUP I 3                S   0000 0011 H'1    CSRR2-30
        31080 0000000                          R   0000 1011 H'24   BL3DM-900
        31150 0000070 A5                       R   0000 0101 H'1    CSRR2-30
        31150 0000000 GROUP II 1               S   0000 0001 H'5    CSRR2-30
        31270 0000120 A9                       R   0000 1001 H'5    CSRR2-30
        31270 0000000 GROUP I 2                S   0000 0010 H'7    CSRR2-30
        31430 0000160 A9                       R   0000 1001 H'7    CSRR2-30
        31430 0000000 GROUP I 1                S   0000 0001 H'7    CSRR2-30
        31570 0000140 A9                       R   0000 1001 H'7    CSRR2-30
        31570 0000000 GROUP I 2                S   0000 0010 H'7    CSRR2-30
        31730 0000160 A9                       R   0000 1001 H'7    CSRR2-30
        31730 0000000 GROUP I 3                S   0000 0011 H'7    CSRR2-30
        31890 0000160 A9                       R   0000 1001 H'7    CSRR2-30
        31890 0000000 GROUP I 8                S   0000 1000 H'7    CSRR2-30
        32050 0000160 A9                       R   0000 1001 H'7    CSRR2-30
        32050 0000000 GROUP I 1                S   0000 0001 H'7    CSRR2-30
        32210 0000160 A9                       R   0000 1001 H'7    CSRR2-30
        32210 0000000 GROUP I 3                S   0000 0011 H'7    CSRR2-30
        32370 0000160 A9                       R   0000 1001 H'7    CSRR2-30
        32370 0000000 GROUP I 1                S   0000 0001 H'7    CSRR2-30
        32530 0000160 A9                       R   0000 1001 H'7    CSRR2-30
        32530 0000000 GROUP I 3                S   0000 0011 H'7    CSRR2-30
        32690 0000160 A9                       R   0000 1001 H'7    CSRR2-30
        32690 0000000 GROUP I 9                S   0000 1001 H'7    CSRR2-30
        32830 0000140 A1                       R   0000 0001 H'7    CSRR2-30
        32830 0000000 GROUP I 1                S   0000 0001 H'1    CSRR2-30
        32990 0000160 A1                       R   0000 0001 H'1    CSRR2-30
        32990 0000000 GROUP I 4                S   0000 0100 H'1    CSRR2-30
        33140 0000150 A3                       R   0000 0011 H'1    CSRR2-30
        33140 0000000 GROUP II 1               S   0000 0001 H'4    CSRR2-30
        33310 0000170 B6                       R   0000 0110 H'4    CSRR2-30
        33490 0000180                          R   0000 1011 H'27   BL3DM-900
        33520 0000030                          R   0000 1010 H'27   BL3DM-900
        33540 0000020 ANSWER                   R   0000 1010 H'28   BL3DM-900
 

 


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