Obi202/Zoiper for Android setup
ianobi:
Interesting. You seem to have designed a hybrid between the original Obihai config using the OBi202 as a proxy for the ip phone to register with and the suggested config in my link, which details how to use softphone accounts which must operate without registering, but can connect with any OBi device.
Zoiper needs to register to work and you have achieved that with your config. For OBi202 owners that does present some new opportunities to use different softphones.
Just when you think you've seen it all ... :)
ats1080:
Haha, glad I could bring up something new. Hopefully it is helpful to someone. As far as I can tell you can have unlimited (restricted to number of ports available: 65535 - 20 or so already used) devices on one ITSP setup. All you need to do is add more ",sp2(2000@ip.addr.of.phone:(local SIP Port below)" to the end of the inbound route. I currently have 4 smartphones using username 2000 on ITSP B and they all ring on an inbound call and can call out flawlessly. I have not tried simultaneous calls yet, not sure if that would work or not.
ianobi:
Assuming that your sp1 InboundCallRoute includes ph1 & ph2, then you appear to have exceeded four terminals. Four used to be the maximum, I wonder if a firmware update has changed that or maybe it's just your unique setup that makes it work.
You might like to have a look at security issues - search for "scanners" on this forum. Like myself and others, you are using "single-stage" or "through dialling" here:
SP2/X_InboundCallRoute = {2000>:SP1}
A scanner who finds the correct ip address / port (your example 192.168.0.41:5061) might well try a CallerID of 2000 and then have access to your SP1 service. You might wish to change the 2000 to something really odd - say ten alphanumeric characters, but not the "Reserved Characters" mentioned earlier. Also I would change the port away from 5061, which is very common in SIP. Change SP2/X_UserAgentPort to something above 30000. That would require changing in the two places you have used it in the Zoiper config also.
Might sound a bit paranoid, but scanners really are looking all the time. Of course Google is free unless you have funds in your account for international calling, but even so ...
ats1080:
Quote from: ianobi on May 11, 2016, 05:25:56 am
Assuming that your sp1 InboundCallRoute includes ph1 & ph2, then you appear to have exceeded four terminals. Four used to be the maximum, I wonder if a firmware update has changed that or maybe it's just your unique setup that makes it work.
I'm not sure. Now that I look back I only had 3 smartphones hooked up, so I'm still over the 4 terminals. My inbound config is this: {ph1,ph2,sp2(2000@192.168.0.30:20124),sp2(2000@192.168.0.35:20123),sp2(2000@192.168.0.33:20125)}
Quote from: ianobi on May 11, 2016, 05:25:56 am
You might like to have a look at security issues - search for "scanners" on this forum. Like myself and others, you are using "single-stage" or "through dialling" here:
SP2/X_InboundCallRoute = {2000>:SP1}
A scanner who finds the correct ip address / port (your example 192.168.0.41:5061) might well try a CallerID of 2000 and then have access to your SP1 service. You might wish to change the 2000 to something really odd - say ten alphanumeric characters, but not the "Reserved Characters" mentioned earlier. Also I would change the port away from 5061, which is very common in SIP. Change SP2/X_UserAgentPort to something above 30000. That would require changing in the two places you have used it in the Zoiper config also.
Might sound a bit paranoid, but scanners really are looking all the time. Of course Google is free unless you have funds in your account for international calling, but even so ...
As far as security, I'm fairly certain I don't need to worry about it (correct me if I'm wrong). I have my Obi behind my router/firewall (not using the Obi as a router, just a host on my LAN) and no ports are being forwarded to it so unless there's something I'm missing (some connection that goes back to Obi that can be exploited?) running a port scan will not pick anything up unless they are already inside my network, which means I have more problems than someone making free calls through my Obi :o
ianobi:
Yes, you should be secure. Your sp1 is GV, which uses XMPP and does not suffer from SIP scanners. Your sp2 does use SIP, but should only be exposed to devices within your own router subnet, so again you should be ok there.
I'm a belt and braces man. Stay secure - never let your defences / trousers / pants fall down :)
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