On the very latest GIT and previous , Freeswitch doesn't seem to set the first Marker Bit to true on an rfc2833 event on the bleg of a call out to a gateway

on the A-leg the first event from my UA to Freeswitch is correct with duration as 0 and Marker bit set to True. Then the second event increments the duration and Market bit is set to false.
but on the B-leg from freeswitch to the cisco gateway the first event has duration 80 (may or may not be a correct but the Marker bit is set to False which is wrong ? Duration then increments and Marker bit remains false.


 **** ALEG from SIP UA to FREESWITCH ****
No. Time Source Destination Protocol Length Info
   5254 23 10.0.47.110 10.50.47.30 RTP EVENT 60 Payload type=RTP Event, DTMF One 1

Frame 5254: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Sonicwal_3d:2b:1c (00:06:b1:3d:2b:1c), Dst: Vmware_ab:60:ec (00:0c:29:ab:60:ec)
Internet Protocol Version 4, Src: 10.0.47.110 (10.0.47.110), Dst: 10.50.47.30 (10.50.47.30)
User Datagram Protocol, Src Port: 49194 (49194), Dst Port: 21374 (21374)
Real-Time Transport Protocol
    [Stream setup by SDP (frame 1122)]
        [Setup frame: 1122]
        [Setup Method: SDP]
    10.. .... = Version: RFC 1889 Version (2)
    ..0. .... = Padding: False
    ...0 .... = Extension: False
    .... 0000 = Contributing source identifiers count: 0
    1... .... = Marker: True
    Payload type: telephone-event (101)
    Sequence number: 26364
    [Extended sequence number: 91900]
    Timestamp: 133920
    Synchronization Source identifier: 0x03bf0676 (62850678)
RFC 2833 RTP Event
    Event ID: DTMF One 1 (1)
    0... .... = End of Event: False
    .0.. .... = Reserved: False
    ..00 1010 = Volume: 10
    Event Duration: 0

**** ALEG SECOND EVENT FROM SIP UA TO FREESWITCH ****
No. Time Source Destination Protocol Length Info
   5255 23 10.0.47.110 10.50.47.30 RTP EVENT 60 Payload type=RTP Event, DTMF One 1

Frame 5255: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
Ethernet II, Src: Sonicwal_3d:2b:1c (00:06:b1:3d:2b:1c), Dst: Vmware_ab:60:ec (00:0c:29:ab:60:ec)
Internet Protocol Version 4, Src: 10.0.47.110 (10.0.47.110), Dst: 10.50.47.30 (10.50.47.30)
User Datagram Protocol, Src Port: 49194 (49194), Dst Port: 21374 (21374)
Real-Time Transport Protocol
    [Stream setup by SDP (frame 1122)]
        [Setup frame: 1122]
        [Setup Method: SDP]
    10.. .... = Version: RFC 1889 Version (2)
    ..0. .... = Padding: False
    ...0 .... = Extension: False
    .... 0000 = Contributing source identifiers count: 0
    0... .... = Marker: False
    Payload type: telephone-event (101)
    Sequence number: 26365
    [Extended sequence number: 91901]
    Timestamp: 133920
    Synchronization Source identifier: 0x03bf0676 (62850678)
RFC 2833 RTP Event
    Event ID: DTMF One 1 (1)
    0... .... = End of Event: False
    .0.. .... = Reserved: False
    ..00 1010 = Volume: 10
    Event Duration: 160

***** BLEG FIRST EVENT FROM FREESWITCH TO CISCO ****
No. Time Source Destination Protocol Length Info
   5329 23 10.50.47.30 10.50.47.19 RTP EVENT 58 Payload type=RTP Event, DTMF One 1

Frame 5329: 58 bytes on wire (464 bits), 58 bytes captured (464 bits)
Ethernet II, Src: Vmware_ab:60:ec (00:0c:29:ab:60:ec), Dst: 64:9e:f3:11:ff:60 (64:9e:f3:11:ff:60)
Internet Protocol Version 4, Src: 10.50.47.30 (10.50.47.30), Dst: 10.50.47.19 (10.50.47.19)
User Datagram Protocol, Src Port: 24034 (24034), Dst Port: 18768 (18768)
Real-Time Transport Protocol
    [Stream setup by SDP (frame 1113)]
        [Setup frame: 1113]
        [Setup Method: SDP]
    10.. .... = Version: RFC 1889 Version (2)
    ..0. .... = Padding: False
    ...0 .... = Extension: False
    .... 0000 = Contributing source identifiers count: 0
    0... .... = Marker: False
    Payload type: telephone-event (101)
    Sequence number: 24716
    [Extended sequence number: 90252]
    Timestamp: 158240
    Synchronization Source identifier: 0x57e5d7a1 (1474680737)
RFC 2833 RTP Event
    Event ID: DTMF One 1 (1)
    0... .... = End of Event: False
    .0.. .... = Reserved: False
    ..00 0111 = Volume: 7
    Event Duration: 80

**** BLEG SECOND EVENT FROM FREESWITCH TO CISCO ****
No. Time Source Destination Protocol Length Info
   5331 23 10.50.47.30 10.50.47.19 RTP EVENT 58 Payload type=RTP Event, DTMF One 1

Frame 5331: 58 bytes on wire (464 bits), 58 bytes captured (464 bits)
Ethernet II, Src: Vmware_ab:60:ec (00:0c:29:ab:60:ec), Dst: 64:9e:f3:11:ff:60 (64:9e:f3:11:ff:60)
Internet Protocol Version 4, Src: 10.50.47.30 (10.50.47.30), Dst: 10.50.47.19 (10.50.47.19)
User Datagram Protocol, Src Port: 24034 (24034), Dst Port: 18768 (18768)
Real-Time Transport Protocol
    [Stream setup by SDP (frame 1113)]
        [Setup frame: 1113]
        [Setup Method: SDP]
    10.. .... = Version: RFC 1889 Version (2)
    ..0. .... = Padding: False
    ...0 .... = Extension: False
    .... 0000 = Contributing source identifiers count: 0
    0... .... = Marker: False
    Payload type: telephone-event (101)
    Sequence number: 24717
    [Extended sequence number: 90253]
    Timestamp: 158240
    Synchronization Source identifier: 0x57e5d7a1 (1474680737)
RFC 2833 RTP Event
    Event ID: DTMF One 1 (1)
    0... .... = End of Event: False
    .0.. .... = Reserved: False
    ..00 0111 = Volume: 7
    Event Duration: 160