SIP Support in Windows Messenger

Hi,

I have done a test and see that after the video/voice conversation has been
accepted. The invitee will send a SIP packet using a source port of 11655 to
a destination port of 7524.

I am trying to get a SIP aware firewall to allow the traffic, and need to
know if the ports used for the SIP packets are the same each time or do they
vary?

--
Regards,
Roy.

They vary dynamically.

You might be able to get this to work if UPnP is turned on, both on the
router and as a service on the PC.

Better suggestion though... Use Skype.

Hello Ian,

Is there a range from which the ports are allocated? I also want to make
sure that we are talking about the same ports. I am specifically looking for
the ports used by the SIP negotiations, and not the ports used for the actual
voice and video. The firewall that I have can look into the SIP packets and
look for the ports that will be used for the voice and video communications.
I just need to tell it what ports the SIP proctocol is using.

--
Regards,
Roy.


"Ian" wrote:

They vary dynamically.

You might be able to get this to work if UPnP is turned on, both on the
router and as a service on the PC.

Better suggestion though... Use Skype.

Greetings,

5004-65535.

--
Jonathan Kay
Microsoft MVP - Windows Live Messenger/MSN Messenger/Windows Messenger
Associate Expert
http://www.microsoft.com/windowsxp/expertzone/
Messenger Resources - http://messenger.jonathankay.com
All posts unless otherwise specified are (c) 2006 Jonathan Kay.
You *must* contact me for redistribution rights.
--

"Roy Lye" wrote in message
...
Hello Ian,

Is there a range from which the ports are allocated? I also want to make
sure that we are talking about the same ports. I am specifically looking for
the ports used by the SIP negotiations, and not the ports used for the actual
voice and video. The firewall that I have can look into the SIP packets and
look for the ports that will be used for the voice and video communications.
I just need to tell it what ports the SIP proctocol is using.

--
Regards,
Roy.


"Ian" wrote:

They vary dynamically.

You might be able to get this to work if UPnP is turned on, both on the
router and as a service on the PC.

Better suggestion though... Use Skype.

Hello, Roy!

You wrote in conference microsoft.public.windowsxp.messenger on Mon, 6 Mar 2006 06:13:26 -0800:

RL Is there a range from which the ports are allocated? I also want to
make sure that we are talking about the same ports. I am specifically
looking for the ports used by the SIP negotiations, and not the ports
used for the actual voice and video. The firewall that I have can look
into the SIP packets and look for the ports that will be used for the
voice and video communications. I just need to tell it what ports the
SIP proctocol is using.


Inside your own domain you can use an administrative template for Windows Messenger, this one:
http://www.microsoft.com/downloads/d...displaylang=en

Under "RTC Client API Policies" ("Computer" section) there is a setting "Specify Dynamic Port Ranges". I think this is what you need.

--
With best regards, Alexei Korobkin

Alexey,

Thanks very much this is the sort of thing I need. Can I use the registry
settings manually?

If so what is the format of the objects in the key
Software\Policies\Microsoft\Windows\RTC\PortRange

Regards,
Roy.

"Alexey Korobkin" wrote:

Hello, Roy!

You wrote in conference microsoft.public.windowsxp.messenger on Mon, 6 Mar 2006 06:13:26 -0800:

RL Is there a range from which the ports are allocated? I also want to
make sure that we are talking about the same ports. I am specifically
looking for the ports used by the SIP negotiations, and not the ports
used for the actual voice and video. The firewall that I have can look
into the SIP packets and look for the ports that will be used for the
voice and video communications. I just need to tell it what ports the
SIP proctocol is using.


Inside your own domain you can use an administrative template for Windows Messenger, this one:
http://www.microsoft.com/downloads/d...displaylang=en

Under "RTC Client API Policies" ("Computer" section) there is a setting "Specify Dynamic Port Ranges". I think this is what you need.

--
With best regards, Alexei Korobkin

Hello, Roy!

You wrote on Fri, 10 Mar 2006 08:55:29 -0800:

RL Thanks very much this is the sort of thing I need. Can I use the
RL registry settings manually?
RL If so what is the format of the objects in the key
RL Software\Policies\Microsoft\Windows\RTC\PortRange

Sorry for the late answer, i'm not quite used to nntp.

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Win dows\RTC\PortRange]

"Enabled"=dword:00000001
"MinSipDynamicPort"=dword:00001bbc
"MaxSipDynamicPort"=dword:00001bbf
"MinMediaPort"=dword:000014e6
"MaxMediaPort"=dword:000014e9

These are the default settings.

--
With best regards, Alexey Korobkin.