6 Replies Latest reply on Feb 24, 2015 9:30 AM by quirty

    TA 916e voice flashhook mode transparent not working

    rivera New Member


      I have a TA 916e running ROS A4.11.00.E for a SIP to FXS application with a metaswitch as sip server . I am trying to use the flash hook option to transfer a call to an external phone number but the IAD is not generating any sip message after the I operate the flash hook, the only message I see is the "14:27:01.891 FXS.0/1 Onhook Detected" in the FXS interface. Please find attached the output of the debug command.

        • Re: TA 916e voice flashhook mode transparent not working
          jayh Hall_of_Fame

          Flashhook events are sent in much the same fashion as DTMF relay.  If you have the voice user configured for DTMF inband it isn't likely to work.  NTE 101 is the default and this should work.  SIP INFO may as well.

            • Re: TA 916e voice flashhook mode transparent not working
              rivera New Member

              Jayh:

               

              Thanks for your respond, as you said the DTMF relay is by default NTE 101 and that is how it was configured when I did the test, see information below. Still not working.

               

              LAB_IAD_Summit_Broadband#sh ru verbose | beg voice user

              voice user 2392191001

                connect fxs 0/1

                no cos

                no first-name

                no last-name

                password "1234"

                no description

                no location

                no aa-dnd

                call-waiting

                no group-ring-call-waiting

                no block-caller-id

                no caller-id-override emergency-number

                no caller-id-override external-name

                no caller-id-override external-number

                no caller-id-override internal-name

                no caller-id-override internal-number

                no did

                no dnd

                no forward

                fwd-courtesy

                special-ring-cadences

                no hotel

                no hotline

                message-waiting both

                no station-lock admin

                no station-lock admin inbound

                no station-lock user

                no station-lock user inbound

                no num-rings

                no coverage

                forward-disconnect battery remove

                forward-disconnect delay 750

                sip-authentication password "1234"

                no vad

                no modem-passthrough

                no t38

                t38 redundancy high-speed 0

                t38 redundancy low-speed 0

                t38 max-buffer 200

                t38 max-datagram 72

                t38 max-rate 14400

                t38 ced length 3000

                no t38 ced auto-generate

                no t38 generate-cng

                t38 v21-preamble-timeout 1700

                t38 error-correction fec

                t38 fallback-mode g711

                no plc

                no alc

                nls

                no anlp

                echo-cancellation

                rtp frame-packetization 20

                rtp frame-packetization mode negotiated

                rtp delay-mode adaptive

                rtp packet-delay nominal 50

                rtp packet-delay fax 50

                rtp packet-delay maximum 100

              rtp dtmf-relay nte 101

                no rtp qos dscp

                no codec-group

                no sip-keep-alive

                no dnis-digits

               

              Jean Louis

                • Re: TA 916e voice flashhook mode transparent not working
                  jayh Hall_of_Fame

                  It may be that the flashhook is indeed being sent but the other side is ignoring it.  You won't necessarily see it in the debug, unless the debug level also shows you DTMF sent after the call is answered.

                   

                  Do a wireshark capture and try sending DTMF 123 - flash - 456 and look at the RTP and RTCP for events, see if you can find the DTMF and the flash. 

                  • Re: TA 916e voice flashhook mode transparent not working
                    jayh Hall_of_Fame

                    The SDP doesn't look like you are sending DTMF as NTE101.  It looks to be inband. 

                     

                    Here is your invite: 

                     

                    14:26:53.717 SIP.STACK MSG     v=0
                    14:26:53.717 SIP.STACK MSG     o=Sansay-VSXi 188 1 IN IP4 172.16.17.201
                    14:26:53.717 SIP.STACK MSG     s=Session Controller
                    14:26:53.717 SIP.STACK MSG     c=IN IP4 172.16.16.40
                    14:26:53.718 SIP.STACK MSG     t=0 0
                    14:26:53.718 SIP.STACK MSG     m=audio 15666 RTP/AVP 0
                    14:26:53.718 SIP.STACK MSG     a=rtpmap:0 PCMU/8000
                    14:26:53.718 SIP.STACK MSG     a=ptime:20

                     

                    Try the following: 

                    In global config:

                    voice feature-mode network

                    voice forward-mode network

                     

                    In the SIP trunk config facing the provider:

                    rtp dtmf-relay offer nte 101