Voice Over IP in UK - Polycom/Draytek/Orange problem

This is Interesting: Free IT Magazines  
Home > Archive > Voice Over IP in UK > May 2007 > Polycom/Draytek/Orange problem





You are viewing an archived Text-only version of the thread. To view this thread in it's original format and/or if you want to reply to this thread please [click here]

Author Polycom/Draytek/Orange problem
Rupert

2007-05-24, 1:11 pm

Hi,

We've got a problem. We've got four Polycom SoundPoint IP 501s connected to
a Hipcom hosted VoIP Centrex service over Orange Broadband (ADSL Max) on a
DrayTek Vigor2800G.

The problem is that the phones keep losing their connection (registration).
They don't drop off the LAN (still pingable etc), they just seem to loose
their SIP connection to Hipcom. All other Internet access seems fine. The
router shows active NAT sessions for all phones on port 5060.

The ADSL Max line is two months old so should have settled down now.

Resetting the router, though, does solve the problem.

Any ideas? TIA

Rupert







Desk Rabbit

2007-05-24, 1:11 pm

Rupert wrote:
> Hi,
>
> We've got a problem. We've got four Polycom SoundPoint IP 501s connected to
> a Hipcom hosted VoIP Centrex service over Orange Broadband (ADSL Max) on a
> DrayTek Vigor2800G.
>
> The problem is that the phones keep losing their connection (registration).
> They don't drop off the LAN (still pingable etc), they just seem to loose
> their SIP connection to Hipcom. All other Internet access seems fine. The
> router shows active NAT sessions for all phones on port 5060.
>
> The ADSL Max line is two months old so should have settled down now.
>
> Resetting the router, though, does solve the problem.


Update router firmware? Try another router? Try a Zyxel.
Could be the Nat table is running out of space.
Rob

2007-05-24, 1:11 pm


"Rupert" <none@none.com> wrote in message
news:g_OdnfwNtOiQJ8jbRVnyhgA@pipex.net...
> Hi,
>
> We've got a problem. We've got four Polycom SoundPoint IP 501s connected

to
> a Hipcom hosted VoIP Centrex service over Orange Broadband (ADSL Max) on a
> DrayTek Vigor2800G.
>
> The problem is that the phones keep losing their connection

(registration).
> They don't drop off the LAN (still pingable etc), they just seem to loose
> their SIP connection to Hipcom. All other Internet access seems fine. The
> router shows active NAT sessions for all phones on port 5060.
>
> The ADSL Max line is two months old so should have settled down now.
>
> Resetting the router, though, does solve the problem.
>
> Any ideas? TIA


You could try asking on the DrayTek users forum at:
http://www.forum.draytek.co.uk/

(I think you may have to register)

Rob


Linker3000

2007-05-24, 7:11 pm

Rupert wrote:
> Hi,
>
> We've got a problem. We've got four Polycom SoundPoint IP 501s connected to
> a Hipcom hosted VoIP Centrex service over Orange Broadband (ADSL Max) on a
> DrayTek Vigor2800G.
>
> The problem is that the phones keep losing their connection (registration).
> They don't drop off the LAN (still pingable etc), they just seem to loose
> their SIP connection to Hipcom. All other Internet access seems fine. The
> router shows active NAT sessions for all phones on port 5060.
>
> The ADSL Max line is two months old so should have settled down now.
>
> Resetting the router, though, does solve the problem.
>
> Any ideas? TIA
>
> Rupert
>
>
>
>
>
>
>

May not be relevant but on the 2600s I have to telnet into the routers
and issue the command: sys sip_alg 0 [enter] otherwise calls drop after
45 secs.

Paul Hayes

2007-05-25, 7:11 am

Linker3000 wrote:
> Rupert wrote:


> May not be relevant but on the 2600s I have to telnet into the routers
> and issue the command: sys sip_alg 0 [enter] otherwise calls drop after
> 45 secs.
>


I was about to say the same thing. Still applies to the newer Draytek
routers as well, the SIP ALG still causes weird problems, I don't know
why router manufacturers bother with them, I'm yet to see one in a SOHO
router that doesn't cause more problems than it solves.

cheers,
Paul.
Tim

2007-05-25, 1:11 pm

Rupert wrote:
> Hi,
>
> We've got a problem. We've got four Polycom SoundPoint IP 501s
> connected to a Hipcom hosted VoIP Centrex service over Orange
> Broadband (ADSL Max) on a DrayTek Vigor2800G.
>
> The problem is that the phones keep losing their connection
> (registration). They don't drop off the LAN (still pingable etc),
> they just seem to loose their SIP connection to Hipcom. All other
> Internet access seems fine. The router shows active NAT sessions for
> all phones on port 5060.


Not sure about the 2800, but the 2600 has a AIP SLG onboard that
intercepts 5060 traffic and messes it up.

You can disable the ALG by telnetting to the router on later 2600
firmware.

Tim
Jon

2007-05-25, 7:11 pm

nutnews@kooky.org declared for all the world to hear...
> Not sure about the 2800, but the 2600 has a AIP SLG onboard that
> intercepts 5060 traffic and messes it up.
>
> You can disable the ALG by telnetting to the router on later 2600
> firmware.


Could that explain why I could never get my VoIP working on my 2600VGi,
and spent £80 on a fritzbox instead?
--
Regards
Jon
Linker3000

2007-05-25, 7:11 pm

Jon wrote:
> nutnews@kooky.org declared for all the world to hear...
>
> Could that explain why I could never get my VoIP working on my 2600VGi,
> and spent £80 on a fritzbox instead?


I have a 2600VGi at home and one of the FXS ports is happily hosting a
DECT phone while connected to a Trixbox server on the LAN side. I have
also had it connected directly to voip.co.uk.

Now as for a fax machine....Hmmm.
Jon

2007-05-26, 1:12 pm

linker3000@google-mailnohyphen.com declared for all the world to hear...
> Jon wrote:
>
> I have a 2600VGi at home and one of the FXS ports is happily hosting a
> DECT phone while connected to a Trixbox server on the LAN side. I have
> also had it connected directly to voip.co.uk.
>
> Now as for a fax machine....Hmmm.


I could not get mine going with sipgate or plustalk (Plusnet VoIP
offering). I could get it to register but only one-way speech.
--
Regards
Jon
Jon Farmer

2007-05-27, 7:11 am

Rupert wrote:
> Hi,
>
> We've got a problem. We've got four Polycom SoundPoint IP 501s connected to
> a Hipcom hosted VoIP Centrex service over Orange Broadband (ADSL Max) on a
> DrayTek Vigor2800G.
>
> The problem is that the phones keep losing their connection (registration).
> They don't drop off the LAN (still pingable etc), they just seem to loose
> their SIP connection to Hipcom. All other Internet access seems fine. The
> router shows active NAT sessions for all phones on port 5060.
>
> The ADSL Max line is two months old so should have settled down now.
>
> Resetting the router, though, does solve the problem.
>
> Any ideas? TIA



Have you checked how often the Polycom's are resending registration
(expiry). IMHO if you get the devices to reregister more frequently it
stops this kind of behaviour. 120 seconds is usually a good setting for me.

HTH

Regards

Jon

Linker3000

2007-05-27, 7:11 pm

Jon wrote:
> linker3000@google-mailnohyphen.com declared for all the world to hear...
>
> I could not get mine going with sipgate or plustalk (Plusnet VoIP
> offering). I could get it to register but only one-way speech.


I had some fun getting
Linker3000

2007-05-27, 7:11 pm

Linker3000 wrote:
> Jon wrote:
>
> I had some fun getting


...ignore that - butterfingers!
Sponsored Links






Free braindumps | Software forum | Database administration forum

Copyright 2003 - 2008 webservertalk.com