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    VOIP Vs VPN

    IT Discussion
    voip pbx telephony vpn security
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    • IT-ADMINI
      IT-ADMIN
      last edited by

      hiiiiiiiiiiiiiiiii Mr Scott, how are you doing

      first of all, the available audio codec that i have in my PBX system is:
      PCMA (8)
      PCMU (0)
      telephone-event (101)
      iLBC (98)
      G722 (9)
      GSM (3)
      SPEEX (97)
      SPEEX (100)
      SPEEX (108)
      L16 (103)
      L16 (11)
      L16 (10)
      G728 (15)
      G723 (4)
      G726-16 (104)
      G726-24 (105)
      G726-32 (106)
      G726-40 (107)

      i select only 3 : PCMA (8) + PCMU (0) + GSM(3)

      best regard

      1 Reply Last reply Reply Quote 0
      • IT-ADMINI
        IT-ADMIN
        last edited by

        i tried to select only GSM(3) since it is compatible with low bandwith but the call cannot be established, so i selected the additional 2 codec

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        • scottalanmillerS
          scottalanmiller
          last edited by

          Try g.723 and make it preferred so that that is tried first.

          1 Reply Last reply Reply Quote 0
          • IT-ADMINI
            IT-ADMIN
            last edited by

            unfortunatlly i don't have this option of preference,
            which are the other codec that i have to select with this codec, can i select it only or other additional codec has to be selected alongside ???

            thanks

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            • scottalanmillerS
              scottalanmiller
              last edited by

              You can enforce a codec by removing all others.

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              • IT-ADMINI
                IT-ADMIN
                last edited by

                aaah you mean i select only one codec (g.723)
                ok i got it
                thanks

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                • scottalanmillerS
                  scottalanmiller
                  last edited by

                  Yes. That's not ideal but should work fine, at least for testing.

                  1 Reply Last reply Reply Quote 0
                  • scottalanmillerS
                    scottalanmiller
                    last edited by

                    I have had good luck with iLBC as well.

                    1 Reply Last reply Reply Quote 0
                    • IT-ADMINI
                      IT-ADMIN
                      last edited by

                      great, is there any other thing that affect QOS ?? separating voice and data (VLANs) maybe a good idea (hhhhhh i know that you hate VLANs) i'm joking Mr scott

                      have a great day Sir

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                      • scottalanmillerS
                        scottalanmiller
                        last edited by

                        QoS on the WAN links is definitely a big deal.

                        IT-ADMINI 1 Reply Last reply Reply Quote 1
                        • IT-ADMINI
                          IT-ADMIN @scottalanmiller
                          last edited by

                          @scottalanmiller

                          but i have no control over the wan traffic, after the packets come out from the wan interface i can't control it !!!

                          scottalanmillerS 1 Reply Last reply Reply Quote 0
                          • scottalanmillerS
                            scottalanmiller @IT-ADMIN
                            last edited by

                            @IT-ADMIN said:

                            @scottalanmiller

                            but i have no control over the wan traffic, after the packets come out from the wan interface i can't control it !!!

                            But you control them before they go out and that is 99% of the battle.

                            You can't control bullets after they leave a barrel but the order that you send them out pretty much guarantees the order in which they arrive.

                            The traffic that you have to worry about is your own and you control that.

                            IT-ADMINI 1 Reply Last reply Reply Quote 0
                            • IT-ADMINI
                              IT-ADMIN @scottalanmiller
                              last edited by

                              @scottalanmiller

                              Yeah Sir you are right, i think that my firewall pfSense can do that because by way of it i can make queues, traffic priority, QOS, by way of these tools i think i can ensure that real time traffic have the highest priority than other type of traffic,

                              see you Mr Scott,,,,,,thank you

                              scottalanmillerS 1 Reply Last reply Reply Quote 0
                              • scottalanmillerS
                                scottalanmiller @IT-ADMIN
                                last edited by

                                @IT-ADMIN said:

                                @scottalanmiller

                                Yeah Sir you are right, i think that my firewall pfSense can do that because by way of it i can make queues, traffic priority, QOS, by way of these tools i think i can ensure that real time traffic have the highest priority than other type of traffic,

                                see you Mr Scott,,,,,,thank you

                                Yes, pfSense can do that. @mike-ralston installed pfSense in the NTG Labs just yesterday too.

                                1 Reply Last reply Reply Quote 0
                                • JaredBuschJ
                                  JaredBusch
                                  last edited by

                                  @it-admin I've used pfSense at home for a long time and never had any problems with it. I recently switched to an Ubiquiti EdgeMax Lite at home and that runs on aversion of Vyatta

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                                  • scottalanmillerS
                                    scottalanmiller
                                    last edited by

                                    Vyatta is pretty impressive.

                                    1 Reply Last reply Reply Quote 0
                                    • IT-ADMINI
                                      IT-ADMIN
                                      last edited by

                                      thank you guys for your input

                                      1 Reply Last reply Reply Quote 0
                                      • scottalanmillerS
                                        scottalanmiller
                                        last edited by

                                        Good luck! 🙂

                                        1 Reply Last reply Reply Quote 0
                                        • IT-ADMINI
                                          IT-ADMIN
                                          last edited by

                                          thank you very much, see you soon Mr Scott (our VOIP expert) with a new topic

                                          1 Reply Last reply Reply Quote 0
                                          • scottalanmillerS
                                            scottalanmiller
                                            last edited by

                                            That's good, we need lots of new topics 🙂

                                            IT-ADMINI 1 Reply Last reply Reply Quote 0
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