Why isn't there something that turns a rooted Android phone into a VOIP Cell network gateway? Something that allows incoming calls to be forwarded to SIP, and vice versa?
I haven't found something like that.
Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
31–40 of 57 posts
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#32Earlier quoted context omitted.
Lots of businesses really, really want a mobile number from me for some reason, don’t accept VoIP numbers, and I don’t want to give them my real mobile number. So instead I have a stack of SIM cards plugged into GSM USB sticks (like this mostly is) and get the inbound messages sent to me via Pushover notification.
Do you have a recommendation for gsm usb sticks? Where do you get them? Do you use just one SIM card at a time, or do you have a usb stick that can hold (and operate) multiple SIM cards simultaneously?
I look for them on eBay but I don't have any current recommendations. In fact, I'm digging around for LTE replacements at the moment since T-Mobile is ending their GSM-only service rather soon.
I have a few USB sticks plugged into a powered USB hub and Gammu watches all of them for inbound messages.
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#33Why isn't there something that turns a rooted Android phone into a VOIP Cell network gateway? Something that allows incoming calls to be forwarded to SIP, and vice versa? I haven't found something like that.
Maybe because nobody had a strong enough use case to feel compelled to implement it. There are very cheap GSM to SIP gateways, that are way less expensive than a mobile phone.
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#34Earlier quoted context omitted.
Lots of businesses really, really want a mobile number from me for some reason, don’t accept VoIP numbers, and I don’t want to give them my real mobile number. So instead I have a stack of SIM cards plugged into GSM USB sticks (like this mostly is) and get the inbound messages sent to me via Pushover notification.
Do you have dozens of phone bills to pay every month?
robotmay who also replied to you is correct for what I do, I have multiple prepaid US SIMs with PAYGO rate plans. It's trivial to get many of these and register them in bulk to get "real" mobile numbers.
(This is why I laugh and laugh at people who insist that VoIP numbers are more "fraudulent" because of whatever. Right now, breaking no rules whatsoever, I can get a hundred mobile numbers that any service will accept, and they'll go for a year without needing any more money. Stop using phone numbers as identity verifiers, people. All you're doing is making it harder for the people who aren't technically savvy and accomplishing nothing to prevent actual fraud.)
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#35Why isn't there something that turns a rooted Android phone into a VOIP Cell network gateway? Something that allows incoming calls to be forwarded to SIP, and vice versa? I haven't found something like that.
Maybe because nobody had a strong enough use case to feel compelled to implement it. There are very cheap GSM to SIP gateways, that are way less expensive than a mobile phone.
Do you have any links for those? I can't imagine them being much cheaper than a free used smartphone that many people have lying around or the price of a used phone from a pawnshop or ebay -- $50.
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#36Does anyone know if you could you this combo to creat some kind of VoIP gateway that could forward calls to an app on an iPhone over the Internet?
There is something for Asterisk called chan_dongle.
Then you can use any SIP client on your iPhone to connect to that Asterisk and make/recieve calls.
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#37Earlier quoted context omitted.
Do you have dozens of phone bills to pay every month?
robotmay who also replied to you is correct for what I do, I have multiple prepaid US SIMs with PAYGO rate plans. It's trivial to get many of these and register them in bulk to get "real" mobile numbers. (This is why I laugh and laugh at people who insist that VoIP numbers are more "fraudulent" because of whatever. Right now, breaking no rules whatsoever, I can get a hundred mobile numbers that any service will accep…
With all those sims, you still have a RSSI from physical cell phone tower(s), so its still serving its purpose for fraud prevention
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#38Earlier quoted context omitted.
robotmay who also replied to you is correct for what I do, I have multiple prepaid US SIMs with PAYGO rate plans. It's trivial to get many of these and register them in bulk to get "real" mobile numbers. (This is why I laugh and laugh at people who insist that VoIP numbers are more "fraudulent" because of whatever. Right now, breaking no rules whatsoever, I can get a hundred mobile numbers that any service will accep…
With all those sims, you still have a RSSI from physical cell phone tower(s), so its still serving its purpose for fraud prevention
How so? None of the fraud prevention APIs I've seen tell you if a given number is connected to a base station, only whether it's theoretically GSM, landline, VoIP, or something else. With the ability to tunnel LTE over an unstructured Internet connection ("wifi calling,") I don't have to be within range of a single US-based base station to "appear" like I am in the US to the mobile network.
And everyone tells me that only accepting "real" mobile phone numbers means they're just piggybacking on the identity checks that mobile carriers do. Which, if true, I'd like to introduce you to Constable George Crabtree and his nineteen perfectly valid mobile numbers, all of them with his name in the CNAM field.
All this does is prevent someone who's not tech savvy and who might be trying to save a bit of cash by using a Republic Wireless or TextNow or some other "free calls and texts!" service from fully participating in this new app-based reality we've constructed. Someone who actually wants to commit fraud will step right over these dumb speed humps and do whatever they like.
I'm not saying don't do fraud detection, I'm saying don't do fraud detection that is so screamingly trivial to bypass.
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#39Can someone please explain to me the appeal of telegram (as opposed to signal)? Maybe I don’t understand something or am too old but how is it a safe haven compared to WhatsApp in the wake of the WhatsApp debecle. I just fail to understand.
Telegram is not at all secure compared to Signal (in theory). However it has an awesome UI and lots of nice features (most of which are lost using secret chats). For the longest time these were exclusive features to telegram compared to Signal: * Delete messages at other party ("undo"), critical for deleting accidentally sent nudes. * Username only communication * Stickers (silly, but well kinda fun) * Bots (very eas…
The "note to self" has been there since I started using signal I think three years ago. Stickers are available since one and a half years, even though discovery could be better. Things have improved a lot in the last 2 years and I haven't encountered any breaking bugs.
Edit: and now with the New Groups you can send people a group link so that they can add themselves. Haven't tried that out yet but that seems pretty cool
Re: Build an SMS Forwarder with Raspberry Pi Zero W and Waveshare SIM7000E Hat
#40Why isn't there something that turns a rooted Android phone into a VOIP Cell network gateway? Something that allows incoming calls to be forwarded to SIP, and vice versa? I haven't found something like that.
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