What Is OBiTalk?
drgeoff:
Quote from: Lavarock7 on June 25, 2016, 10:46:37 am
@Azrobert: Were you speaking about an Obi not registered at all in the Obi network at all or just not in your account?
I just tested calling to an Obi not in my account. I had set up a separate Obi account for a neighbor, registered the Obi and added service providers. Then I left it connected at his house while he is on vacation.
When I dialed that Obi number from my home Obi (**9500xxx..) it rang and rang. I logged into the neighbors account and sure enough it was ringing at his house:
State ringing Fork to multiple terminals: PH1 PH2
I was under the impression that Obi to Obi calls were only allowed within the same account. Seems not.
All OBis. That is why it is not a good idea to reveal your OBi number(s) in posts here. :)
azrobert:
Quote from: Lavarock7 on June 25, 2016, 10:46:37 am
@Azrobert: Were you speaking about an Obi not registered at all in the Obi network at all or just not in your account?
I was talking about an OBi not added to any account. Any OBi is automatically connected to the OBiTalk network, otherwise you wouldn't be able to add your device to OBiTalk or do an echo test.
When I bought a 2nd OBi device I tested calling my 1st device and it failed. After adding the device to OBiTalk the call worked. That was years ago and I assume nothing has changed, but I'm not sure.
You can absolutely call any OBi added to another account. That is why you should check the OBi number from calls over the OBiTalk network, especially when routing the call to the AA.
drgeoff:
Quote from: eightminobi on June 25, 2016, 10:42:15 am
So are you saying that voice data flows through the ObiTalk network ONLY WHEN making Obi-to-Obi calls using the 9-digit Obi device ID? And that all other voice calls (to actual phone numbers) flow through the third-party ITSP through which one has VOIP service?
Yes and yes.
(Be aware that 'other voice calls' can be to endpoints which are not reachable by dialling 'actual phone numbers'. Just as an email address is of the form 'an.other@isp.com', a SIP endpoint is 'sip:an.other@itsp.com'. or even 'sip:me@myhomerouterswanIP'. The first of those does not necessarily have an E.164 phone number associated with it. Calls to the second could be routed from one SIP terminal to another SIP terminal without passing through any ITSP.)
eightminobi:
Wow, this is really good information...
I am surprised that I've not gotten fund-raising calls to my OBI. According to your post, there is nothing to stop someone from serially connecting to other OBi phones using OBiTalk... :o
Having said that, OBiTalk really is a neat way to communicate among devices. I especially like that I can configure my at-home OBi202 from anywhere in the world.
I think I do want to use OBiTalk features--not to communicate with other OBi users, but to do intra-home/office communication between me and people working in other rooms in the house. If we each have an OBi1022 sitting on our desk, it would be great to be able to call other "offices" using the OBiTalk network rather than make an actual phone call and tie up lines. I still don't know how to provision the empty phone-buttons on my OBi1022, but in time I would like to use them to make/receive intraoffice calls to other OBi units.
Thanks,
Steve
drgeoff:
Quote from: eightminobi on June 25, 2016, 11:36:55 pm
I am surprised that I've not gotten fund-raising calls to my OBI. According to your post, there is nothing to stop someone from serially connecting to other OBi phones using OBiTalk... :o
Spam calls over the Obitalk network do not seem to be much of a problem and even if they become so, for most OBi owners the list of Obitalk numbers they would wish to receive calls from is small. It is not difficult to set up a white list and block calls from all other Obitalk numbers.
What is a problem, and you will run into it sooner or later is SIP scanners. Your phone rings, shows a Caller ID of 101 or similar, you answer and there is no one there. These 'calls' come in not via an ITSP but directly to a port (usually in the 5060 to 5080 range) on your router's WAN address. These are probes looking for ways into SIP systems which can be exploited to make calls at your expense. There are countermeasures discussed in http://www.obitalk.com/forum/index.php?topic=5467.0, notably the 'Oleg method'.
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