For your information...
I met ZVRS at booth. I find those are dumbfound...
the 1Number is bit trick... They told me that doesn't require to register as just leave that those... I explain if I want to use a call to VRS I must have access to register for that and each device. Even they explain the P3, it will rang without need register. I asked, without log in. They say YEP!
I find that so dumb and need register each device and so on... too much trouble because it just one pretty 1Number... I pass... I know there will standard more devices for one number instead register each device.
ZVRS sales rep, not at headquarter, are DUMB and STUPIDLY. Yes I am rude about them because they don't understand how VRS industry and NeuStar works.
ZVRS engineers, at headquarters, are definitely not dumb or stupid. Speaking as the guy who wrote our Neustar iTRS backend, I can assure you of that.
I don't know what you mean by "register that device".
1Number can only be activated for a Z phone, with a Z assigned phone number. As ZVRS is the primary VRS provider for that Z phone, it is responsible for updating the iTRS entry for that Z phone. As ZVRS assigns a ZConnect IP address from their cloud for each Z phone, this ZConnect IP address is the H.323 address that is published into the Neustar iTRS database.
The way Neustar's iTRS database works is that the NPAC database's ALT-SPID entry for a given phone number needs to be set to the correct ALT-SPID of the VRS provider in question. If the ALT-SPID column is left empty, the first VRS provider to provision the iTRS database entry effectively "owns" it until someone else sets the ALT-SPID to something else to take that ownership away.
When a 10 digit local number is ported, the VRS provider that ported the number away gets their carrier to set their ALT-SPID in the NPAC database for the phone number. This transfers "ownership" of the iTRS database record to the new provider, who can then update it to point at the H.323 IP address of their device.
There are a number of corner cases which cause customers headaches.
Sometimes the old provider doesn't "forget" a phone number when it is ported away. This breaks the old provider's phones from being able to call the videophone by phone number on the new provider as registered in the iTRS database.
Tollfree numbers don't have NPAC database entries. There is no way to specify an ALT-SPID for a tollfree number. You don't "port" a tollfree number. You transfer the responsible organization (respOrg). The only way to transfer ownership is to have the old VRS provider delete that tollfree number from iTRS so that the new VRS provider can update it for their customer.
Sometimes VRS providers return numbers back to their carrier but forget to empty out the ALT-SPID, and sometimes other VRS providers are re-allocated those numbers but are unable to change them in iTRS as they down "own" them. The fix to this is to have the new VRS provider change the ALT-SPID to their own in the NPAC database, and Neustar will transfer the iTRS database entry ownership of that profile to them.
As for 1Number. I'm kinda the guy who designed that as well...
Presently, the 1Number feature can only be enabled on a Z phone number for a Z video phone.
Nothing in iTRS changes. For 1Number. You just need a Z phone to act as the "primary".
When someone calls that "primary" number, the call is "forked" on the ZVRS calling platform to allow it to simultaneously ring up to 4 videophones at the same time, including one additional ZBox to act as a house flasher (for a potential total of 5 things simultaneously ringing). Of those 4 videophones, one of those can be a 10 digit iTRS phone number.
So I'm still confused here as to what you are claiming about the P3. So long as Purple populates the iTRS database for that phone number with the IP address of their Vidsoft.de H.323 gateway, any VRS provider should be able to call that P3 phone number
Please contact ZVRS customer support if you have further questions. Escalate if you get someone who cannot answer the question. If you escalate enough, you might eventually make it to engineering, and me. I assure you, your question will be answered.