Am 01.11.2012 um 07:38 schrieb Michael Knill: > Hi group
Hi Michael, > 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 AstLinux includes "libsrtp" in the Asterisk 1.8 build, and also the "ast_tls_cert" script for SIP TLS configurations from this site: https://wiki.asterisk.org/wiki/display/AST/Secure+Calling+Tutorial > 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 Michael http://www.mksolutions.info
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