SIP servers - Sonus, Clarent (I think), Nortel, Indigo, guys like that. SIP phones used by providers - practically none. Dont' get me wrong - there are SIP phones out there. But phones are not really the point of SIP. SIP is a generalized control plane that extends far and beyond phones. Right now, SIP is mostly being exploited by mobile carriers for back-end interoperability. SIP is also being exploited to facilitate rich instant messaging (consider RFC 3428).
""supernet"" wrote in message news:[EMAIL PROTECTED] > 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: http://www.groupstudy.com/form/read.php?f=7&i=64563&t=64433 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
