MyAir and modem in Resmed

[zzzlessinMS]

Just picked up my new Aircurve 10 VAUTO.  DME did not input any cell phone number for (DME/RESMED) so modem has no number to call.  So that means people could disable modem by deleting phone numbers installed in machine. May require factory reset (and erases all data) so only do so if you have data downloaded somewhere.  Also start new SD card because old settings will be rewritten to machine internal memory if you insert old SD card after factory reset.

DME also said they never look at data transmitted by phone after compliance period unless patient calls or comes in with complaint.  Few doctors in my area are checking MyAir for compliance.  They are using SD cards only.

[Walla Walla]

The modem on the Resmed machines doesn't use phone lines. It's transmitted to a cell tower.

[Marillion]

Walla Walla is correct. You should not need to have to do anything to allow the machine to transmit the data to your DME. It will go through cell towers wherever you may be. Even overseas.

[zzzlessinMS]

But it goes from cell tower to a designated recipient number. If your machine doesn't have that info, what is cell tower gonna do with it?

DME has to enter info on your machine at time of setup for the data to go somewhere (example, DME, sleep doc, MyAir). So without that setup, data won't be transmitted. This information is almost always entered at setup time. My DME did not enter as he knew I didn't want data transmitted and I am no longer on compliance check.

[zzzlessinMS]

The modem on the Resmed machines doesn't use phone lines. It's transmitted to a cell tower.

A cell phone number must be specified.

[mesenteria]

I believe it's an IP address, not a designated phone.

[zzzlessinMS]

OK, IP address.  If not entered into machine memory at setup, it has no IP address to transmit to.  Thus, factory reset would wipe out the IP address.

No IP address, no transmission.

So if you don't want to constantly deal with Airplane mode or want to physically remove modem from machine, there is another option.

[Fats Drywaller]

Not an IP address; it's not on the Innertubes. It's an IMSI, I believe.

[Fats Drywaller]

Here, I see that pholynyk answered a similar question a while back. (But IMEI is older and less general than IMSI.)

The only things that will prevent the modem from calling the nearest cell site and ratting you out are to hardwarily disable it or to put the A10 in Airplane Mode.

Edited to add: Or a Faraday cage, of course.

[Fats Drywaller]

OBTW, here's another good point from a long-ago discussion:

When it comes out of Airplane mode, it will report all accumulated data to resmed.  So it is not turned off permanently, and the S10 defaults to NOT being in airplane mode, so you have to treat it carefully.