Thanks. What SIP servers and SIP phones do service providers use? 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
nrf
Sent: Tuesday, March 04, 2003 10:03 PM
To: [EMAIL PROTECTED]
Subject: Re: IP Telephony SIP [7:64433]

""supernet""  wrote in message
news:[EMAIL PROTECTED]
> Can anyone kindly enough tell me why SIP is better than CCM? What's
the
> main difference between this two? Is there any SIP in production?
> Thanks. Yoshi

You shouldn't compare SIP and CCM.  SIP is an industry standard, whereas
CCM
is a Cisco product.  Any vendor, including Cisco, can and has
implemented
SIP.  Only Cisco can 'implement' CCM (after all the first 'C' stands for
Cisco).

There is a significant amount of SIP in production - almost all of it in
service-providers.   Most of today's 3G wireless networks, for example,
rely
on SIP.

To make things more confusing, Cisco may implement SIP within CCM soon.




Message Posted at:
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