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  • Shoretel and Dialogic DMG1000LS (for OCS integration)

    Hi there,

    I'm a Shoretel newbie I'm afraid, my experience lies with OCS, so apologies if this is a stupid question.

    I've done quite a bit of research through the administration and planning guides, as well as looking at the application notes posted on the Shoretel site, but don't think I've found documentation that describes our scenario.

    We currently have a Shoretel 7 (Build 12.6.2301.0) PBX. It has a trunk group already configured with 250 extensions.

    We also have a Dialogic DMG1000 gateway (1008 LS). So far, the analog FXO ports on the DMG gateway are plugged into 8 ports on the shoretel switch.

    The end result we are trying to achieve is that 8 telephone extensions we would like to be "homed" in OCS. So currently we have 250 4 digit extensions, numbered from 1000 to 1250. For example, we would like 1220 to 1227 to be homed on OCS.

    I have been reading the planning guide, and section 14 deals with legacy integration. There is a paragraph that states "When all inbound trunks are consolidated on the ShoreTel 7 system, the trunks are configured to support off system extensions within the range of extensions on the other PBX". I believe this is what I am trying to accomplish as essentially, OCS is the other PBX (via the DMG1000).

    So when a user dials extension number 1220 (or dials that DID number), Shoretel routes the call through the first available analog port plugged into the DMG1000 along with analog in band DTMF signalling. This is then passed through to the OCS mediation server and the call is then routed in OCS.

    What I don't understand is how to configure Shoretel to allow this. The legacy integration section of the planning guide seems to concentre on using a T1/E1 connection, and not analog ports.

    All I have done so far, is to configure on the existing trunk group, that 1220 to 1227 are "off system extensions". What I don't understand is how to tell Shoretel that these extensions live on analog ports 17 to 24 on the switch.

    Any advice would be gratefully received!

  • #2
    Configure the trunk group with the off system extensions as you have already done. Now go add 8 trunks to that group and specify the correct port for each trunk. Do not put any other trunks in that group.


    • #3
      Hi there again,

      Thanks for the suggestion, but that option doesn't seem available. I've gone into the "Trunk Groups" page, and clicked the option to add a new trunk to that group.

      On the new trunk page, there are three options. The first is the name. The second is the switch channel. There only four options available in the drop down and they relate to ports 28 through to 32 on the main E1 switch. The last option is "Jack #" and is a free text field.

      We have four other ShoreGear 120/24 switches, one of which has the DMG1000 plugged into.

      Connectivity to the PSTN is via the E1 connection.

      Any further ideas?


      • #4
        Did you go into the Switches page, select the switch, and change those port types to trunk?


        • #5
          Thanks for the continuing help, it's very much appreciated. Also, sorry for some of the questions that may appear somewhat obvious!

          So, we hadn't configured those port types to trunk.

          So we've gone into the switches page, and selected the switch. I've taken a screenshot of the edit switch page here:

          Unfortunately, there doesn't seem to be a way of getting to the "edit port". For the first six ports, clicking on the "Edit" button, actually takes us to the "Edit User" page, and not the edit port page.

          Clicking on the pictures of the ports themselves, doesn't do anything at all.


          • #6
            You will need to assign the users on those ports to a different port. For example, on the user's page, choose Softswitch from the three options. This will free up the port. The only question is why you have users assigned to these ports?


            • #7
              Sorry, my screenshot wasn't very good. Ports 17 through to 24 are where the gateway is plugged into, and they are free, exactly like port 7 is (the last one) in the screenshot. Again, no way to click on that and change it.


              • #8
                A 24 is limited to 8 analog trunks. Is it ports 1-6 or ports 9-16 that are already analog trunks?


                • #9
                  None that I'm aware of. 1 - 6 have analogue telephones plugged into them. 7 and 8 are unallocated. 9 - 16 are marked as conference ports, although in reality, nothing is plugged in. And then 17 - 24 are also unallocated.

                  There are also a further three other switches of the same type, and again, I believe that there are no trunks configured on any of them.


                  • #10
                    I think I've solved the problem, although not in a good way. I've been reviewing the planning documentation and come across the following section:

                    Originally posted by ShoreTel

                    Voice Switches
                    • Analog trunking is supported only in the US and Canada.
                    • The ShoreGear-T1 (IPBX-T1) is supported in the US, Canada, and for both central
                    office applications and tie trunk applications. The ShoreGear-T1
                    (SG-T1) is supported in the US and Canada only.
                    • The ShoreGear-E1 is supported in the remaining countries for both central office
                    and tie trunk applications.

                    International Trunking
                    • In the international market, EuroISDN over PRI/BRI is supported, but analog
                    trunking, as well as Channel Associated Signaling using E1, is not supported.
                    • Alternatively, SIP Gateways may be available depending on the region. Please
                    check on the ShoreTel Partner’s website for the latest additions to the ShoreTel
                    Technology Partner Program


                    • #11
                      Ah, OK. I've never worked international before.