undefined | Better HN

0 pointsgruez4y ago0 comments

How do the calls actually get routed to your phone? Via SIP, or through your cell provider (ie. it dials your phone's phone number)? If everything is over SIP, then it makes sense that everything is SHAKEN/STIR compliant.

0 comments

2 comments · 1 top-level

walrus014y ago· 1 in thread

at present I do it as the latter. My cellphone's direct number is an external destination on the asterisk system and it initiates a new outbound call to it, and bridges the audio/call from the incoming caller to it.

I can also do it direct over SIP if I want. The android linphone SIP softphone client is not bad. My cellphone can register to my asterisk system as the same extension as my SIP desk phone in my home office. Or if I want I can give it a new extension number and make my desk phone extension number, and the linphone softphone extension number part of the same ring group for me as a person. In which case I would send x500 from the IVR main menu to that ring group.

I generally don't leave linphone running and connected unless I'm actively using it because it can be a battery/CPU hog (in order to SIP register to my asterisk system I also need to be on my personal openvpn link, my server doesn't accept incoming connections from any public IP on the internet). So a combination of the openvpn client running and linphone simultaneously.

gruezOP4y ago

> at present I do it as the latter. My cellphone's direct number is an external destination on the asterisk system and it initiates a new outbound call to it, and bridges the audio/call from the incoming caller to it.

But under that scheme, would it still work SHAKEN/STIR? I would think not, because to your cell provider it's effectively indistinguishable from a bad guy spoofing caller ids. Or perhaps there's some forms or whatever you can fill out to get a certificate that allows a third party to spoof calls to you?

j / k navigate · click thread line to collapse