[sip-comm-dev] Sip-Communicator and WiFi


#1

Hi all,

The SC works fine in a local area with an ethernet connection but I'm always
wanting more :slight_smile: This time I followed this test plan : in the first side we
have a pc connected to the modem-router F@st1500 using an ethernet
connection (the Asterisk installation and an SC client are installed there),
in the second side we have connected another pc via WiFi using a dongle and
all that pretty world is running under Linux (Mandriva and Suse).

I've made basic tests (pings) and all them can be reached. The two SC
clients register and I was able to make a call but once it takes place, I
could not hear any sound! However it does work with a LAN 100% ethernet.
Using ethereal, I saw that RTP packets are forwarded to the callee so I dont
understand why sound doesn't comes out.. Have anyone faced the same problem
or have succesfully tested SC with a WiFi installation??

Thanks for your replies


#2

Make some captures on both sides using ethereal and analyse that
information. It might happen that the RTP packets are being correctly
sent but they might not reach destination, or there might be a port change
in the sent RTP packets due to firewall restrictions or rules (I had that
problem long time ago with a SIP application I developed).

That's just an idea, I haven't tested it via WiFi.

Good luck

路路路

On 6/14/07, asmouta <asmouta@gmail.com> wrote:

Hi all,

The SC works fine in a local area with an ethernet connection but I'm
always wanting more :slight_smile: This time I followed this test plan : in the first
side we have a pc connected to the modem-router F@st1500 using an ethernet
connection (the Asterisk installation and an SC client are installed there),
in the second side we have connected another pc via WiFi using a dongle and
all that pretty world is running under Linux (Mandriva and Suse).

I've made basic tests (pings) and all them can be reached. The two SC
clients register and I was able to make a call but once it takes place, I
could not hear any sound! However it does work with a LAN 100% ethernet.
Using ethereal, I saw that RTP packets are forwarded to the callee so I dont
understand why sound doesn't comes out.. Have anyone faced the same problem
or have succesfully tested SC with a WiFi installation??

Thanks for your replies


#3

Ok, thanks, I'll do but in my installation I have no NAT and no firewall.
It's a basic LAN.

路路路

On 6/14/07, Borja Gonzalez <bgluaces@gmail.com> wrote:

Make some captures on both sides using ethereal and analyse that
information. It might happen that the RTP packets are being correctly
sent but they might not reach destination, or there might be a port change
in the sent RTP packets due to firewall restrictions or rules (I had that
problem long time ago with a SIP application I developed).

That's just an idea, I haven't tested it via WiFi.

Good luck

On 6/14/07, asmouta <asmouta@gmail.com> wrote:
>
> Hi all,
>
> The SC works fine in a local area with an ethernet connection but I'm
> always wanting more :slight_smile: This time I followed this test plan : in the first
> side we have a pc connected to the modem-router F@st1500 using an
> ethernet connection (the Asterisk installation and an SC client are
> installed there), in the second side we have connected another pc via WiFi
> using a dongle and all that pretty world is running under Linux (Mandriva
> and Suse).
>
> I've made basic tests (pings) and all them can be reached. The two SC
> clients register and I was able to make a call but once it takes place, I
> could not hear any sound! However it does work with a LAN 100% ethernet.
> Using ethereal, I saw that RTP packets are forwarded to the callee so I dont
> understand why sound doesn't comes out.. Have anyone faced the same problem
> or have succesfully tested SC with a WiFi installation??
>
> Thanks for your replies
>


#4

asmouta,

Make sure that no other interface is enabled on your machine and that only your Wi-Fi card is up.

Hope this helps
Emil

asmouta wrote:

路路路

Ok, thanks, I'll do but in my installation I have no NAT and no firewall. It's a basic LAN.

On 6/14/07, *Borja Gonzalez* < bgluaces@gmail.com > <mailto:bgluaces@gmail.com>> wrote:

聽聽聽聽聽聽聽聽聽聽Make some captures on both sides using ethereal and analyse that
聽聽聽聽information. It might happen that the RTP packets are being
聽聽聽聽correctly sent but they might not reach destination, or there might
聽聽聽聽be a port change in the sent RTP packets due to firewall
聽聽聽聽restrictions or rules (I had that problem long time ago with a SIP
聽聽聽聽application I developed).
聽聽聽聽聽聽聽聽聽聽That's just an idea, I haven't tested it via WiFi.
聽聽聽聽聽聽聽聽聽聽Good luck

聽聽聽聽聽聽聽聽聽On 6/14/07, *asmouta* <asmouta@gmail.com <mailto:asmouta@gmail.com>> > wrote:

聽聽聽聽聽聽聽聽Hi all,

聽聽聽聽聽聽聽聽The SC works fine in a local area with an ethernet connection
聽聽聽聽聽聽聽聽but I'm always wanting more :slight_smile: This time I followed this test
聽聽聽聽聽聽聽聽plan : in the first side we have a pc connected to the
聽聽聽聽聽聽聽聽modem-router F@st1500 using an ethernet connection (the Asterisk
聽聽聽聽聽聽聽聽installation and an SC client are installed there), in the
聽聽聽聽聽聽聽聽second side we have connected another pc via WiFi using a dongle
聽聽聽聽聽聽聽聽and all that pretty world is running under Linux (Mandriva and
聽聽聽聽聽聽聽聽Suse).

聽聽聽聽聽聽聽聽I've made basic tests (pings) and all them can be reached. The
聽聽聽聽聽聽聽聽two SC clients register and I was able to make a call but once
聽聽聽聽聽聽聽聽it takes place, I could not hear any sound! However it does work
聽聽聽聽聽聽聽聽with a LAN 100% ethernet. Using ethereal, I saw that RTP packets
聽聽聽聽聽聽聽聽are forwarded to the callee so I dont understand why sound
聽聽聽聽聽聽聽聽doesn't comes out.. Have anyone faced the same problem or have
聽聽聽聽聽聽聽聽succesfully tested SC with a WiFi installation??

聽聽聽聽聽聽聽聽Thanks for your replies

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#5

Thanks Emil for your reply, I've already shutdown the ethernet interface on
the machine and I'm sure that I'm connected using the WiFi (no cable is
connected :slight_smile: ) I'll look in details in the ethereal captures tomorrow.

路路路

On 6/14/07, Emil Ivov <emcho@emcho.com> wrote:

asmouta,

Make sure that no other interface is enabled on your machine and that
only your Wi-Fi card is up.

Hope this helps
Emil

asmouta wrote:
> Ok, thanks, I'll do but in my installation I have no NAT and no
> firewall. It's a basic LAN.
>
> On 6/14/07, *Borja Gonzalez* < bgluaces@gmail.com > > <mailto:bgluaces@gmail.com>> wrote:
>
> Make some captures on both sides using ethereal and analyse that
> information. It might happen that the RTP packets are being
> correctly sent but they might not reach destination, or there might
> be a port change in the sent RTP packets due to firewall
> restrictions or rules (I had that problem long time ago with a SIP
> application I developed).
>
> That's just an idea, I haven't tested it via WiFi.
>
> Good luck
>
> On 6/14/07, *asmouta* <asmouta@gmail.com <mailto:asmouta@gmail.com>> > > wrote:
>
> Hi all,
>
> The SC works fine in a local area with an ethernet connection
> but I'm always wanting more :slight_smile: This time I followed this test
> plan : in the first side we have a pc connected to the
> modem-router F@st1500 using an ethernet connection (the Asterisk
> installation and an SC client are installed there), in the
> second side we have connected another pc via WiFi using a dongle
> and all that pretty world is running under Linux (Mandriva and
> Suse).
>
> I've made basic tests (pings) and all them can be reached. The
> two SC clients register and I was able to make a call but once
> it takes place, I could not hear any sound! However it does work
> with a LAN 100% ethernet. Using ethereal, I saw that RTP packets
> are forwarded to the callee so I dont understand why sound
> doesn't comes out.. Have anyone faced the same problem or have
> succesfully tested SC with a WiFi installation??
>
> Thanks for your replies
>

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