I  played around with qualify frequency and settings without success. I
didn't have such problems with Openwrt and dedicated router from my
operator.
This is not reliable and If I can not find a solution for this I'll have to
give up pfsense.
Any help in this case is appreciated!


On Wed, Oct 16, 2013 at 12:31 PM, palesius . <[email protected]> wrote:

> Thanks that (keepalives on phone) seemed to help but we're suffering
> unrelated connectivity problems between the sites, so I won't be able to
> test until that is resolved, but if I'm having trouble still I'll try some
> of your other suggestions.
> On Oct 15, 2013 8:44 AM, "Jon Gerdes" <[email protected]> wrote:
>
>> I use these parameters which seem to work regardless of where the phone
>> is (NAT or VPN)
>>
>> nat=yes for all devices whether internal (VPN) or external
>> Set the RTP ports to the same as the Asterisk server or make the server
>> range a superset of the device's ranges
>> Enable symmetric RTP
>> Enable keep alives on the phones - some may have a NAT keep alive option
>>
>> Make sure you have defined your localnet on Asterisk for each "internal"
>> subnet.  I usually put  10.0.0.0/255.0.0.0 172.16.0.0/255.240.0.0 and
>> 192.168.20.0/255.255.0.0 in on all Asterisks I configure - it covers
>> most eventualities.
>>
>> Hope this helps
>>
>> Cheers
>> Jon
>>
>>
>> >>>
>> > i have nat=no set for those devices since it's over a tunnel (i've tried
>> > yes and strict as well i think).
>> > my RTP range is 10000-20000 on the asterisk device. (and they are
>> allowed
>> > through the firewall)
>> > at the moment i'm using a snom m9 (RTP range 49152-65534)
>> > but i've seen the same issues with a aastra 480 (rtp 3000-3003)
>> > and a digium d50 (not sure on the RTP ports)
>> >
>> > Should any of this matter over a OpenVPN tunnel? or only over NAT?
>> >
>> > I'm not just losing voice btw (which i assume is the RTP), I'm loosing
>> all
>> > connectivity (which I'm assuming means my Sip session is down).
>> >
>> >
>> > On Mon, Oct 14, 2013 at 5:12 AM, Jon Gerdes <[email protected]>
>> wrote:
>> >
>> >> Are you using symmetric RTP?  if not, try that along with a keep alive
>> >> option.  As the RFC for it states it should be a default - shame it
>> isn't
>> >> on many systems. it fixes a lot of snags for me.
>> >>
>> >> I have a phone - Cisco 504G - on my desk that can go weeks without
>> >> making/taking a call and yet just works.  The PBX  - Asterisk 11 - for
>> it
>> >> is over 50 miles away, behind  pfSense  2.1 (formally 2.0.{1,2,3}), at
>> one
>> >> stage over IPSEC and now simply NATted.
>> >>
>> >> Your problem is almost certainly the phone setting up an RTP port at
>> >> registration and then assuming it can carry on using it.  The state
>> goes at
>> >> one end or the other and then calls fail.  By using symmetric RTP you
>> >> effectively fix the RTP port at both ends and the state will properly
>> keep
>> >> alive - at both ends, PBX and phone.
>> >>
>> >> Also make sure that your RTP port range is the same at both ends.
>>  There
>> >> are many range defaults depending on manufacturer.  Asterisk defaults
>> to
>> >> 10000-20000 (check /etc/astyerisk/rtp.conf) but Cisco for example does
>> not.
>> >>
>> >> So:
>> >> Get the RTP ranges fixed up
>> >> Use symmetric RTP
>> >> Use keep alives
>> >>
>> >> Cheers
>> >> Jon
>> >>
>> >>
>> >>
>> >> >>>
>> >> > Already tried that, I think they are pinged every 30sec from the
>> asterisk
>> >> > side.
>> >> >
>> >> >
>> >> > On Thu, Oct 10, 2013 at 10:05 AM, Vick Khera <[email protected]>
>> wrote:
>> >> >
>> >> >> Can you configure your phones to use do a keepalive ping? It sounds
>> like
>> >> >> the states are timing out.
>> >> >>
>> >> >>
>> >> >>
>> >> >> On Wed, Oct 9, 2013 at 5:44 PM, palesius . <[email protected]>
>> wrote:
>> >> >>
>> >> >>> To take a break from all the NSA talk...
>> >> >>>
>> >> >>> I'm having some trouble routing traffic over an openvpn tunnel
>> between
>> >> >>> two pfsense firewalls. Asterisk server on one end, a couple of
>> >> different
>> >> >>> phones on the other side.
>> >> >>>
>> >> >>> It was working fine when we had monowall on both ends. (W/ipsec
>> tunnel)
>> >> >>> Since changing to pfsense it will register with the server just
>> fine
>> >> but
>> >> >>> will lose it's connection anywhere from a few minutes to hours
>> later.
>> >> >>>
>> >> >>> I've tried both ipsec and openvpn tunnels and have pretty much the
>> same
>> >> >>> result. I know mono and pfsense use a diffrerent firewall engine,
>> is
>> >> there
>> >> >>> something obvious I should set/change to fix this.
>> >> >>>
>> >> >>> I had kind of dropped the issue a few months ago but wanted to take
>> >> >>> another stab at it. I'll try to do some packet captures but don't
>> have
>> >> any
>> >> >>> at the moment. Just hoping there is some easy general fix for
>> getting
>> >> SIP
>> >> >>> working that someone else has already discovered.
>> >> >>>
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