ATA as a 2nd OBi phone port

[azrobert]

I would like to share my setup with the forum.
I'm using an ATA as an almost full function 2nd OBI phone port.

First, I want to give credit to hwittenb with this post on Dslreports:
http://www.dslreports.com/forum/r27101955-Using-one-ATA-as-proxy-of-another-one

Second, I apologize if this was covered by another post.  I could not find anything.

My hardware:
OBi110 and a Grandstream ATA on the same network.

OBi110 config:
sp1 = GV
sp2 = sip provider
sp2 X_InboundCallRoute = {(My_ID)>(1?xxxxxxxxxx):sp1},{(My_ID)>:sp2},{ph}

ATA config:
Server = 192.168.1.xxx:5061 (IP addr of OBi)
User ID = My_ID
Register = no

Any 10 or 11 digit call on the ATA will be routed to GV. All other calls will be routed to the sp2 provider.
GV supports 2 concurrent outbound calls, so you can have calls on the OBi and ATA at the same time.
The OBI is acting as a proxy server to the ATA.
Inbound calls to the OBi can be routed to the ATA's IP address.

[mrjoe]

I don't understand what you are accomplishing with this.

Why don't you just use a Splitter?

[QBZappy]

mrjoe,

GV supports 2 concurrent outbound calls, so you can have calls on the OBi and ATA at the same time.

You can not make/receive multiple calls with a splitter. With the splitter you are limited to one call. Connected via splitter you can share the call with the other phone (party line/conference).

[rob613]

I've tried to replicate this capability using a softphone.
I don't understand what else might have to be configured on the Obi so that the "my-id" field can be used, and also where the 5061 listener port gets configured.
Any suggestions?

[azrobert]

I got the X-Lite SoftPhone working with the following config.

OBi110 config:
sp1 = GV
sp2 = sip provider
sp2 X_InboundCallRoute = {(robert)>(1?xxxxxxxxxx):sp1},{(robert)>:sp2},{ph}

X-Lite config:
UserID = robert
Domain = 192.168.1.xxx:5061 (IP addr of OBi)
Register with Domain = not checked
Send Output Via = Domain checked

In my previous example My_ID is any name you want to pick.
The ATA/SoftPhone will send the UserID as the CID.
That is what I'm checking for in the X_InboundCallRoute.

5061 is the default port on the OBi SP2.
If you defined SP1 as your SIP provider then use 5060 and modify your sp1 X_InboundCallRoute.

I haven't tested it, but this setup should work with the ATA/SoftPhone outside your home network.
You would have to setup port forwarding in your router.

Beware, there is absolutely no security with this setup!

[QBZappy]

azrobert,

Does CID pass to the softphone or ATA? I have never explored using the gateways. Gateways are for outbound only I think. Is that right?

[azrobert]

QBZappy,

In my above examples, the call is going out sp1 or sp2.  You could also route the call to a Gateway.
Yes, gateways are for outbound only.

I don't understand your question on CID.
The call is going from a SoftPhone or ATA to the OBi.
I'm far from being an expert at this stuff. 
I know enough to be dangerous, so I'm not sure you can technically call it CID.
Below is a screen shot of the OBi call history of a call using this method.
The Peer Number is "robert" which is what I defined as UserID in the X-Lite softphone.
Peer Number is CID on an inbound call.
This is an inbound call to the OBi and it is re-routed out SP1.

Has anybody successfully tried this method?

(I can't cut and paste the screen shot using the Snipping Tool, so you'll have to believe me)

[QBZappy]

azrobert,

Since it is only for outgoing calls, my incoming CID question is not relevant. Thanks.

[azrobert]

QBZappy,

For inbound calls to your ATA you have to add another X_InboundCallRoute.
For example add {(1480xxxxxxx):sp2(robert@192.168.1.xxx:5060)} to sp1 X_InboundCallRoute.
Where 192.168.1.xxx is the IP address of your ATA.
All inbound calls on sp1 with CID in area code 480 will be routed to the ATA.
I could not get it to pass the CID to the ATA.

[QBZappy]

azrobert,

I was thinking about OBiAPP vs this approach to make and receive calls. What would be the pros and cons of using either approach. When the OBi unit receives a call and then forks the call to the combination of OBiAPP+SIP client, the CID will pass. I think this is may be the only reason to use the OBiAPP since it seems that we can accomplish it the other way. I am missing something?

[rob613]

Thank you for the clarification - I have replicated this using x-lite.
I also have verified that two simultaneous outbound calls can be made through the GV configuration, one from the local phone port and the other through this softphone.

[lhm.]

As ObiTalk is down at this time, this setup would by by-pass Obitalk. Has anyone been able pass CID on the inbound to the ATA?

[Stewart]

If you enable X_SpoofCallerID for the profile in question (and that doesn't interfere with any other uses of the SPx), caller ID should pass to the other ATA.