[Serusers] Mediaproxy proxy all calls.

[serlist at khatuwala.com]

what do you mean by NATTING?

Im quite new to SER and SIP. Ive been researching this for a while
now and have learned lots about it but am confused about a few things
and now trying to put all the bits and pieces together.

 From what I know there are a few different types of NAT of which
Full-cone NAT is the easiest to get through and symmetric NAT is not
possible to get through without any reconfiguration of the NAT box.
STUN can be used to help in NAT traversal and its quite successful
and can achieve a success rate of about 80-90%. In other cases either
reconfiguration of the NAT box is required or SIP clients will have
to go through a media proxy.

Now if I use mediaproxy with SER then will it proxy ONLY in the
10-20% cases ie when STUN fails?

How will the SIP clients have to be configured if the server is
running SER with mediaproxy and STUN is also running? Is the example
config correct?

sip proxy : sip.examplesip.com
domain/realm : sip.examplesip.com
NAT enable, STUN server :stun.examplesip.com
username : sip_user
password : sip_password
outbound proxy : enabled.

Should the SIP proxy address be same as SER's address or the server
where mediaproxy is running?
Should outbound proxy be enabled?
Is it required to enable STUN in the SIP Client?

Finally I would like to know if its possible to restrict some users
to allow/disallow them to use mediaproxy. i.e. if they are not
allowed to use my mediaproxy then they will have to open up the ports
on their router to make calls.

Thanks and would appreciate your feedback.

Vikash.

At 20:17 01-09-2005, Iqbal wrote:
>mediaproxy is used when NATTING
>
>Iqbal
>
>serlist at khatuwala.com wrote:
>
>>Hi,
>>
>>I would like to know that after setting up mediaproxy with SER, will
>>all calls' media stream go through the proxy? Will mediaproxy, proxy
>>the call only when absolutely necessary or will it proxy in all
>>cases? From what I understand about 80-90% of cases the rtp stream
>>can get through NAT using STUN.
>>
>>I cannot find any information on this question on the internet.
>>
>>Thanks and regards,
>>Vikash.
>>
>>_______________________________________________
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>>.