[Freeswitch-users] Remote LogIn to Freeswitch?

[Steven Ayre]

Sounds like an NAT problem. You have two connections set up for a call - one
for the signalling and one for the media. It's common that behind NAT you
can have SIP working but RTP broken.

Off the top of my head there's a few possible reasons:
- The router is too dumb to spot the SIP and automatically open the RTP
ports: forwarding those manually may help resolve that.
- The router has a SIP ALG that tries to correct the IPs sent through SIP
and actually breaks things even worse: try disabling that feature.
- Freeswitch doesn't know the external IP address and will send the internal
IP in the SDP, so the other host doesn't know where to send RTP to: try
using STUN, or setting ext-sip-ip and ext-rtp-ip on the sip profile.

DMZ might help work around any of the above without actually solving your
real problem.

-Steve


On 28 January 2011 22:31, Joao Leme <joaocarlosleme at gmail.com> wrote:

> FINALLY I got it to work, I can now remotely log in on the internal profile
> (port 5060) after placing the computer running Freeswitch on DMZ (changed on
> Firewall), although that's not the ideal solution, so I was wondering why it
> wasn't working before. I had the firewall set up according to the wiki on "
> http://wiki.freeswitch.org/wiki/Firewall" and other than that I changed
> the "domain" on vars.xml to my external ip of the router, it created an
> ALIAS so that I can use as the "Domain" on X-lite to log on. So I had the
> internal profile mod_sofia at 192.168.X.XX:5060 and the Alias 76.XXX.XX.XX,
> that was before and I was able to LogIn, make calls but NO SOUND. NOW once I
> forwarded all the port through DMZ, this particular router 2701HG-B Gateway
> (Att) required me to change my (freeSwitch running computer) static ipv4
> (192.XXX.X.XX) to DHCP and then assigned me the external IP (76.XXX.XX.XX)
> as my a Ipv4. Now the internal profile (sofia status) is
> mod_sofia at 76.XXX.XX.XX:5060 and I'm not using the ALIAS.
>
> SO...I was wondering...it wasn't working before because 1) A Firewall
> configuration missing? 2) A NAT/Firewall problem or 3) Freeswitch internal
> profile running on local machine ipv4 192..... and I logging on using the
> router external IP 76.XX and the Alias didn't do the job?????
>
> Sorry there is some nonsense question, I'm a beginner and any help is
> appreciated.
> Thanks,
> John
>
> On Tue, Jan 11, 2011 at 1:37 AM, Steven Ayre <steveayre at gmail.com> wrote:
>
>> If you're able to dial in but you're getting no sound, it's probably
>> NAT stopping the audio get through.
>>
>> There's quite a bit of information on NAT on the Wiki that might be of
>> use.
>>
>> http://wiki.freeswitch.org/wiki/NAT
>>
>> -Steve
>>
>>
>> On 11 January 2011 00:39, Joao Leme <joaocarlosleme at gmail.com> wrote:
>> > Hi There,
>> > What do I have to do to be able to LogIn to Freeswitch from Home (server
>> is
>> > located at office) starting from the basic/original configuration?
>> > I'm using X-Lite. I've been able to LogIn replacing the internal IP by
>> the
>> > external IP from the Office but the sound is not working so I wanted to
>> know
>> > what are the configuration changes that have to be done to allow it. Do
>> I
>> > have to create a different profile? I want be able to do the same just
>> as if
>> > I was at the Office.
>> > Thanks,
>> > John
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