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RJHN *1JOD · Guest

Sorry forgot to mention,

Forward UDP port "5060"
Forward UDP ports "5010 to 5013" that way it includes port
5010,5011,5012,5013, as when the optipoint talks to another optipoint
the next pair of ports are used.
Forward these to the IP address of the phone.

John

Rob Walford · Guest

ah! i was using a virgin mobile!
trying to use 2 sip phones at once and it not working makes sense (cant
see the wood for the trees!).
of course they are trying to use the same port. doh!
i'll have another play when i get a chance.
thanks again.

RJHN *1JOD · Guest

Brilliant!!

The 056 number wont work from my virgin mobile, but OK from the
landline.

I think the reason xlite wont call the siemens may be because they both
use port 5060 for sip info, I seem to remember being unable to get
xlite to work with an IP phone or xlite within the same LAN.I don't
have xlite installed now.

At least it's heading the right way!!!

John

Rob Walford · Guest

just tried to call from a landline and an O2 mobile and i get the
voipfone voicemail greeting.
strange......

RJHN *1JOD · Guest

Wonder if the phone is not responding because the voipfone server
can't see the phone behind the router properly.

I suppose when you make a call from the siemens it opens the ports
through the router and so you are able to make a call.

I guess the phone sends out the register requests and the
firewall/router/NAT passes these through to the server, and because the
phone initiated the request, the response from the server is passed
through the firewall to the phone and it is able to log on/ make calls.

If the server makes the request (for an incoming call) then maybe the
firewall/NAT is unable to pass these correctly to the phone.

May be worth checking the configuration of the router as Enzo mentions
earlier in the thread, I start to quickly get out of my depth when
discussing the protocols of SIP port redirection etc!

As Enzo says, you would need to pass the ports (I mentioned earlier)
from the IP of the phone to any destination in the routers
configuration. May be worth doing a google for your router and SIP.

It can get so complicated, as life seems to be these days!

John

Rob Walford · Guest

i have set port forwarding, nat, firewall rules, anything else i can
think of and i can still only make outgoing calls.
If i remove all the programming, i can still make outgoing calls!
(i guess i have a stateful firewall)
I dont know what else to try. At least i can make outgoing calls,
though.
It must be doing something right to be able to do that.
I contacted voipfone, and they say that they cant even see my phone as
logged in.
I may eventually get a HandyTone-486 or similar, but if theissue is
with my router I may still have problems. Maybe i should eventually
get a sip-enabled router.

Rob Walford · Guest

for ref, heres my f/w rules:

dir source dest srce port dest port pro tcp fl
action
any 0.0.0.0/32 192.168.1.8/32 1024-65535 1024-65535 UDP None
Allow
any 192.168.1.8/32 0.0.0.0/32 1024-65535 1024-65535 UDP None
Allow

heres my NAT entries:

Local Address Local Port Public Address Public Port Protocol
192.168.1.8 1024-65535 xxx.xxx.xxx.xxx 1024-65535 UDP

Rob Walford · Guest

BTW, even with my firewall disabled, i cant receive incoming calls.

RJHN *1JOD · Guest

I am afraid I am not at all familiar with the way your router works and
am still trying to find out how mine works! (It's all a rather steep
learning curve!

I presume the public IP address in the NAT table is your IP address.

Not sure of the 0.0.0.0/32 in your previous post, the phone should
certainly communicate using the ports you have forwarded.

I also think rather than a firewall issue it is a problem with NAT
traversal (the phone not supporting stun or similar protocol)
I wonder is there a way you can put a destination address (i.e. IP of
Voipfone) in the settings (not even sure by mentioning this if its even
possible or desirable!)

Is it possible to see the active NAT sessions (my router is able to
show a real time table of active sessions) that way its possible to see
a little of what's going on.

I wonder if there may be some diagnostic software to sniff at the SIP
packets, not sure but think I have seen something that is able to look
at these mentioned in relation to SIP.

I rather like the look of the intertex range of routers, they have very
good SIP support but rather expensive! I would guess the phone should
work properly behind one of those; trouble is costs can easily runaway
with the various options available!

It seems the preferred ATA is the sipura range, I have seen a linksys
ATA around £ 45 on broadbandstuff.co.uk (I believe this is similar to
the sipura). The only trouble I found using an ATA was with echo on the
called parties end, this was very dependent on the phone being used. I
don't mind slight echo at my end (although a bit disconcerting) but
wanted the phone on the other end to sound as good as possible.

I have now settled for the snom 360 and find this is an excellent phone
but as with all this VOIP through the Internet it is not without its
latency and QOS issues at times.

If the firmware was upgraded then I am sure they could easily add the
features needed to make it work properly! The American version has a
higher version number, but I have failed to find a means of downloading
it.

Any one out there have any thoughts of how the firmware can be
obtained, I have tried emailing Siemens without response?

John

Rob Walford · Guest

0.0.0.0/32 should mean "any ip address" on my router.
i am currently in email communication with voicefone.
he asked me to try nat.voicefone.co.uk:5065 as the outbound proxy, but
he obp domain entry in the optipoint would not take it.
i have made one call, and was certainly impressed by the quality.
It seems odd that you can receive incoming and i cant, thats why i
think its a router/firewall/nat issue somewhere.
i'll let you know if i get anywhere with voicefone support.
i asked about disabling the voicemail, as to test i have to call and it
costs me every time, but that option is coming soon apparently.
I d/l the handytone 486 user guide. What i like about it is that you
can select to dial voip or landline, although it has a built in router
with NAT etc and i am not sure how it would sit behind my existing
router. i'll have a look at the sipura as well.

RJHN *1JOD · Guest

I think the OBP setting port number is internally set; I have no idea
what it is.
The phone is very restrictive of what settings you can make, i.e.
setting the obp to a specific port number, etc.
If only it was possible to get hold of the later American firmware for
it!
John

Enzo Michelangeli · Guest

Rob Walford wrote:

Rob Walford · Guest

x-lite has always worked fine with sipgate, but i didn't set it up.
Sipgate automatically installs x-lite with all the correct settings.
I suppose that means that the issue should lie with the phone, but its
slightly frustrating if John managed to get it working.

RJHN *1JOD · Guest

Just a quick update.
I have also tried the phone with a linksys hs200 router and it seems to
work ok.
I certainly think it is a NAT problem with your router.
If I think of any thing else I will let you know.
John

pt-1 · Guest

Could someone maybe help me with my Optipoint 420 in the UK with th
Provider Sipgate ?
I am running the latest SIp Software (4.1.29) on it and I cannot manag
to configure it for my Provider..

I have attached 2 Screenshots :-)

[image: http://www.2and2.net/Uploads/Images/2SipOPtipoint%20420_2.JPG]

[image: http://www.2and2.net/Uploads/Images/2SipOPtipoint%20420.JPG

--
pt-1

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