Hi group
I am just wondering what people are using for remote extension registration
onto the Astlinux box? Currently using an iPhone with the Bria client by
Counterpath.
I am targeting this feature in my marketing which is being driven by an every
increasing mobile workforce.
Here are some of the options I have considered:
1) I can open up port 5060 to everything - Or I could just say hack me
2) I have a customer that we have created named sip devices and custom firewall
rules to prevent scanning on 5060. Pretty good but I still dont like it.
3) Use a VPN on the phone and connect via the tunnel. Unfortunately the iPhone
seems to drop VPN connections when going to standby. It cant see why it needs
to do this. It could at least reestablish when you come back!
4) Use SIP/TLS and also SRTP if you want to encrypt RTP. I think this is the
best option so far. If you dont care about voice encryption then you only need
TLS.
5) This looks interesting. Not sure if it can be used in Astlinux:
http://www.venturevoip.com/How-to-asterisk.1.8_SRTPTLS_snom300_pgsm.pdf
Does anyone do anything else?
Another problem is the battery drain of a client in the background all the
time. Not sure if there are any options here as well.
Looking forward to hearing from you.
Regards
Michael Knill
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