Remote Extension setup with no service

[Nooton]

My SPA-2000 and SPA-3000's have just arrived.

The idea is to plug the 3000 into my office extension's POTS line and plug the 2000 in at home.

I don't really want to get a service. I just want when I pick up the phone at home, the devices connect automatically and I hear office dialtone. Similarly, when a call comes to my extension in the office, I want the phone to ring at home. Completely simple and transparent.

Can anyone tell me what to do to each box to make this happen?

Thanks!

[PhoneBoy]

You will need static IP addresses at BOTH locations for this to work.

SPA-3000:

You'll establish a username and password in the HTTP Authentication section (we'll call them spa2kuser and spa2kpass so we can refer to them later). Set the dial plan for that username/password pair to "None." Other parameters to set include:

VoIP-To-PSTN Gateway Enable: Yes
VoIP Caller Auth Method: HTTP Digest
One Stage Dialing: Yes
PSTN-To-VoIP Gateway Enable: Yes
PSTN Caller Auth Method: None
PSTN Caller Default DP: 8 (or an unused one)

In Dial Plan 8: something like (S0<:spa2kuser@spa2kiport>)

Where:

spa2kuser is the user defined on the SPA-2000
spa2kip is the IP address of the SPA-2000
port is the port number of the SIP port used (usually either 5060 or 5061)

On the SPA-2000:

Proxy: spa3kip
Register: No
Make Call Without Reg: Yes
Ans Call Without Reg: Yes
UserID: spa2kuser
Password: spa2kpass

What will happen is that a call received on your PSTN line of the SPA-3000 will be forwarded to the SPA-2000 after 5 seconds (you can reduce this timer, but it's not recommended since the device will not be able to get Caller ID).

When the SPA-2000 picks up the phone, they will receive local dialtone, they can dial a number, then that is forwarded to the SPA-3000 which will play a second dialtone and the DMTF from the digits you dialed will be heard.

I've tried this here at home on my LAN and it works pretty well.

[Nooton]

cool! I'll give this a go this weekend!

Thanks!

[Nooton]

Well, I set them up like this:
SPA-3000 192.168.1.188
SPA-2000 192.168.1.187

All of the settings went well, setting ONLY what you put here. (I am brand new to this, so I don't know if any other settings are needed.)

Anyway, what happens is that when I pick up the phone connected to the spa2k, I can dial anything and it waits, then I get a busy signal.

When I call into the line port on the spa3k, it never picks up and acts like the line isn't even plugged in, (yes, I tested that just to be sure!)

By the way, to use the office pbx, I need to be able to dial single digits, like 5 for voice mail. Is that possible? Is there a way to force the spa2k to connect immediately when I pick up?

[PhoneBoy]

Proxy on the SPA-2000 should be: spa3kiport (the port number of the PSTN Line, by default 5061), that's probably why that part isn't working. So therefore, on the SPA-2000, configure

Proxy: 192.168.1.188:5061

Another reason is the SPA-3000 isn't detecting a PSTN Line is present (which happens with some PBXes). You may need to adjust the Line Voltage parameters as well. Look on the Info tab for some hints. Also set the PSTN Answer Delay to something like 10, then set the PSTN Ring Thru Line 1 to yes just to see if the handset on Line 1 rings when you call on the PSTN line. That will at least give you some indication of where the problem lies.

[Nooton]

I'll try this in the office tomorrow. The PBX is a Bizfon. Anyone have any experience with a Bizfon connected to the PSTN port?

[Nooton]

Okay, the spa2k definitely has on the Line 1 tab:
SIP Port: 5061 and
Proxy: 192.168.1.188:5061

I don't have any outbound proxy, does that matter?

The spa3k has on the PSTN line tab:
SIP Port: 5061 and nothing for proxy...

No change...Is there any way to get a status that will give me an error of some kind to help troubleshoot?

As far as ringing into the PSTN, ring through line 1, that works. If I plug the phone into line 1, the phone does ring and I can talk on it. At least success on something!!!

[PhoneBoy]

SIP Port should be 5060 on the SPA2k, but Proxy should be 192.168.1.188

[Nooton]

Wait, you said above that the port should be 5060?

But does it really matter as long as all connections are using the same port? There isn't any magic to 5060 of 5061 for that matter, is there?

Unless one side needs one port and the other side needs a different port?

Where am I missing the boat?

[PhoneBoy]

Each port on your SPA must be configured to use a different SIP port. Typically, Line 1 uses port 5060, Line 2/PSTN uses port 5061. They can be anything you'd like as long as they are unique.