2 Sipgate numbers behind one router..?

Discussion in 'VOIP' started by Ivor Jones, Jan 20, 2005.

  1. Ivor Jones

    Ivor Jones Guest

    Anyone know how to set up two Sipgate accounts behind a single router..? I
    currently have a Grandstream ATA-486 running behind a Netgear DM602
    modem/router and I'd like to add a second account. Initially I'd like to
    get this working on X-Lite, but if I can do this ok I'd maybe invest in
    either a second ATA-486 or a 2-port device such as one of the Sipura

    Can anyone advise me of the correct settings to allow X-Lite to function
    in this way..? I tried the default settings but it wouldn't log on and
    although I can originate calls from the second account it won't respond to
    incoming calls (returns busy tone) and shows as offline on the Sipgate

    I have emailed Sipgate but while waiting for a response I thought I'd ask

    Ivor Jones, Jan 20, 2005
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  2. Ivor Jones

    Martin² Guest

    Sipgate state somewhere that they don't support it.

    As I can figure out, both 'lines' come via the same port and there is no way
    to program the router to which phone (IP)
    to forward the call.
    Draytek 2600V routers have two VoIP ports, but AFAIK at the moment they
    can't handle two 'lines', although
    Draytek is hinting it will be possible with a later firmware. Not sure just
    how they propose to do it.
    Martin², Jan 21, 2005
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  3. Ivor Jones

    Dave Guest

    So what does the other port do on the Draytek?
    Dave, Jan 21, 2005
  4. BT-101: How do I configure two or more SIP terminals in a network? (Content
    Overview: )

    In order to allow two SIP terminals on a network to operate behind one
    router, you must make the following configuration changes.

    Configuration of the IP devices
    Reconfigure the DHCP mode and assign a static IP address to both devices.

    Call the IP address of a device in the browser.

    The devices are pre-configured on the following ports:

    a.. Listen SIP Port: 5060

    a.. Listen RTP Port: 5004

    Make the following changes on one of your SIP devices:

    a.. Listen SIP Port: 5061

    a.. Listen RTP Port: 5005

    Click on "Update" in order to make the changes take effect.

    Configuring the router
    Adjust the router to forward ports 5061 and 5005 to the IP of the equipment,
    in the configurations menu in which you made the changes! i.e.-Your router.

    If you want to use more than two IP devices in a network, using one router,
    proceed as described above, but number those ports sequentially in the
    configuration menu of the device.

    Configure these ports to route traffic the same way. For a third IP device
    for example:

    a.. Listen SIP Port: 5062

    a.. Listen RTP Port: 5006
    Julian Thornhill, Jan 21, 2005
  5. When I was having problems with the ATA-486 displaying the CLI (still an
    only found 1 phone which will display the CLI: BT Synergy DECT), I checked
    the use random port on the ATA config (rather than the default 5060, 5004) -
    it still worked, as the use random port option is for your exact case maybe
    you could give it a go!

    Jonathan Pearson, Jan 21, 2005
  6. Ivor Jones

    John Geddes Guest

    Sipura 2000 should be able to do this - the device has one IP address and
    two ports for POTS phones (with separate setup parameters). My presumption
    was that the Sipgate warning to use just one phone came from the fact that
    they do not supply two-phone adapters themselves, and that it is a one-IP
    restriction rather than a one-phone restriction.

    But I have not made my Sipura 2000 work yet - my Netgear RP614 (v2) router
    is rather crude in Port-Forwarding options, and won't work even with xLite.
    I am yet to identify an affordable non-wifi router that will work well with
    Sipgate and the Sipura. (Suggestions welcome).

    John Geddes
    Derbyshire UK
    John Geddes, Jan 21, 2005
  7. Ivor Jones

    sean Guest

    The cisco ATA 186 can do this, mine does do this :)

    and the two numbers are very similer :)
    sean, Jan 21, 2005
  8. Ivor Jones

    Ivor Jones Guest

    As I said, I'm using a Netgear DM602 modem/router (single port, connected
    to external hub) and it works fine with my Grandstream ATA-486. Don't want
    to spend more money on something like the Sipura until I *know* it's going
    to work..!

    Ivor Jones, Jan 21, 2005
  9. Ivor Jones

    Dave Gill Guest

    I found that my tatty old Siemens-built BT Dect displays CLI fine, but
    needs a ring capacitor to make it ring, while my newer Sagem-built BT
    Dect won't display CLI but doesn't need the ring capacitor...

    Fortunately Sipgate supplied an adapter with a ring capacitor with the
    Dave Gill, Jan 21, 2005
  10. Ivor Jones

    Ivor Jones Guest

    I never got one of those, I had to get one from Maplins..!

    BTW re. the original post, I finally got it working, by fiddling with the
    port numbers on X-Lite and in the router, but succeeded in locking up both
    the router and the ATA-486..!

    Methinks this project requires some more thought..!

    Ivor Jones, Jan 21, 2005
  11. Ivor Jones

    Martin² Guest

    Yes, you can easily forward ports 5060 & 5004 to one VoIP phone and ports
    5061 & 5005 to another,
    but then you presumably need to get the service providers VoIP server to
    'call you' on the alternative ports ?
    Martin², Jan 22, 2005
  12. Ivor Jones

    Martin² Guest

    AFAIK you can plug in two analog phones, but both use the same 'line' /
    Martin², Jan 22, 2005
  13. BTW (Ivor) - I know that your CLI worked with a Binatone?, do you have a
    list of model numbers of the phones which you've used and the CLI has worked
    with the ATA-486 - I'll also go to maplins and get a new BT-to-RJ11 adaptor
    incase my current one isn't working?

    thanks in advance
    Jonty Pearson, Jan 22, 2005
  14. p.s. The sipagte website has been updated sometime in the past month - your
    original post is covered in the help section of the ATA-486 - section 6

    Jonty Pearson, Jan 22, 2005
  15. Ivor Jones

    Ivor Jones Guest

    Well my second ATA-486 arrived today and I configured it to use ports 5005
    and 5061 as per the instructions on the Sipgate website, but no joy. Tried
    calling my other Sipgate number and got no transmitted audio in either

    Spent half an hour on the phone to Sipgate but even the extremely helpful
    guy there was unable to assist, we tried everything we could think of but
    no luck.

    I *think* it's down to the fact that my existing ATA-486 seems to require
    the DMZ of the router to be set to its IP address, obviously I can't set
    the DMZ to more than one address.

    So it looks like my plan for 2 Sipgate numbers has gone pear-shaped :-(
    Sipgate say I can return the 486 for a refund, but I might try seeing if a
    friend who I know is currently using X-Lite is interested, either way I
    won't lose out financially.

    Thought I'd report my findings here, if anyone else has *successfully* got
    two Grandstream ATA-486 units to work behind a single router, *please* let
    me know how you did it..!!

    Ivor Jones, Jan 28, 2005
  16. Ivor Jones wrote:

    Specify the (different, unique) ports that the ATAs are set to use and
    use "port forwarding" across to your DMZ.

    Good luck,
    Martin 53N 1W, Jan 28, 2005
  17. Ivor Jones

    Ivor Jones Guest

    Sorry, I don't understand. My router has an address of and the
    PC's are etc. The existing (working) ATA-486 is set to and I set the new one to

    The ports used by the existing ATA are the defaults of 5004 and 5060, the
    new one is set to 5005 and 5061 as per Sipgate's instructions. The port
    forwarding in the router is set to forward the ports to the correct

    The router only has one port for a DMZ, this is set to the
    address of the working ATA.

    What else, if anything, do I need to do..?

    Ivor Jones, Jan 28, 2005
  18. You should be able to have more than one IP address in your DMZ. If not,
    then use DMZ and DMZ2!?

    What you want is port forwarding such that:

    wanIP:5004 <-->
    wanIP:5060 <-->
    wanIP:5004 <-->
    wanIP:5060 <-->

    If your router can't support that, then you need another router or you
    should set up your own Asterisk server...

    Good luck,
    Martin 53N 1W, Jan 28, 2005
  19. Ivor Jones

    Miguel Cruz Guest

    If your router can honestly only forward ports to one internal device, the
    answer is to get a new router. Can it only forward ports to devices attached
    to the physical DMZ port? Can there be more than one device connected there
    via a hub?

    Miguel Cruz, Jan 28, 2005
  20. Ivor Jones

    Ivor Jones Guest

    Martin 53N 1W wrote:

    The router is a Netgear DM602 modem with inbuilt router and single
    Ethernet port, this is connected to a hub to which the PC's and ATA's are
    connected. In the config it is only possible to set one IP address as a
    DMZ. I have never heard of DMZ2..?! I don't see any way of adding port
    numbers to the end of IP addresses.

    I don't want anything that requires a PC to be on all the time. Maybe one
    of the Sipura devices that has 2 phone sockets..? Could one of these be
    configured to do what I want..?

    Ivor Jones, Jan 28, 2005
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