Hello Charles,

TL>> Some ATAs have a command to say the IP address.  To access this, you
TL>> need to plug in a POTS phone and dial the appropriate command sequence
TL>> on the keypad. You would need to know the command, which would be in the
TL>> manual.  Might be able to gind a copy of the manual online from the
TL>> manufacturer's website or with a Google search.

CS> That's the problem, I don't have a POTS Phone.....

You also could try it with an analogue modem, or DTMF-dialer?
The last one is often used to listen to voice recorders and answering machines
remotely.

TL>> If the unit is using DHCP, one way is to interrogate your router to
TL>> find out what devices have DHCP leases, and look for the ATA in the list.
TL>> It's likely to have "Grandstream" in the hostname.  Point your web
TL>> browser to the likely candidates, until one responds with the login
TL>> page.

CS> How would I go about doing that??

I see, the problem is finding out the IP-adres of your apparatus.

TL>> If the Grandstream is configured with a static IP, then a factory reset
TL>> is the easiest way to get it going.

That does not always help.
I have an old IP to parallel and serial Printer Server, wich resets everything
to a default (is your fault ;-) value, but in this case just except the
assigned IP-adres, arg. So that stayed unchanged to an unknown value.
But read on, I found out a workable way.

TL>> Is there one of those pinhole reset buttons?  If so, try that,
TL>> otherwise it's back to the manual.

CS> It has a pinhole, and I did the factory reset, but I still don't know
CS> the default IP address to acces the web interface.
CS> It has one, but I haven't been able to find the default addres anyplace.
CS> There's a MAC address and some more numbers on the bottom of the device.
CS> Is there a way to figure it out using that?

First you could do a multi adress Ping in your local network and see with
stations give an answer.
Sorry, I am forgotten how to do that ;-(.
If replying on a ping is disabled in the device, your are unlucky ;-(.

The other solution I got from a friend for my Axis NPS550 PrinterServer
was using ARP or RARP (=reverse ARP).
Go to the dos-command of your webbrowsing machine. Type there:

ARP -s <wished-IP-adress> <mac-adress>

Then you have a temporary IP-adress local coupled to that specific
MAC-adress of the unknown hardware. Choose an unused adress in the same range
as your router is using, but outside the DHCP range.
This only works if the destination machine accepts RARP (=Reverse ARP).
And yes I was lucky that my Axis NPS550 Printer Server accepted that.
Now I could change that strange IP-adres to something more appropriate.
And of course I made a digital text notice of this on my work computer,
complete with the manual I found at InterNet.

If all the above fails, your last resort would be an ip sniffer to read what
happens on the all the lines of your local network.
Search for something like WireShark or NetCat etc.
Good luck on finding out a solution for your problem.

Henri.

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 * Origin: Connectivity is the Future; UniCorn BBS 31 26 4425506 (2:280/1208)