I am trying to analyze your question as I am not able to understand your query ...
You ask "What are the major challenges for the mobile telco industry in adopting SIP as their choice for IMS?" Let me think ... and refer ... What does SIP do? Basically it controls the calls. What are the other candidates which can do this in IMS network? - This should have come from you in your question ... 1. Bearer Independent Call Control (BICC), and 2. H.323 - Please add more if you know more ... So why SIP? - Unlike BICC and H.323, SIP is text-based. - Design borrowed from HTTP and SMTP - most successful protocols on the Internet. Also developers can use all the present service frameworks developed for HTTP, such as CGI and Java servlets. - Unlike BICC and H.323, SIP does not differentiate the User-to-Network Interface (UNI) from a Network-to-Network Interface (NNI) - works end to end. - It is easy to create new services using SIP - IMS is all about IP Multimedia Sessions :-)) So with reference to your question I ask that what are the other choices that the mobile telco industry has - other than SIP :-)) and then we can discuss challenges WRT those protocols ... Best regards Harpreet Juneja On 8/28/07, Arnab Biswas <[EMAIL PROTECTED]> wrote: > > Thanks for the clarification. > > Ok I am reframing the question: What are the major challenges for the > mobile > telco industry in adopting > SIP as their choice for IMS? > > I will be waiting for the answer. > > Thaks, > Arnba > > On 8/27/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > Arnab Biswas wrote: > > > Hi Dale, > > > > > > Could you please elaborate... > > > > > > Arnab > > > > > > > > > > > > > > > SIP, when it was first conceived, was not intended to replace the PSTN > > with an IP based alternative. The basic tenets of what SIP is is ... > > "The initiation of sessions within a transport agnostic environment." > > IMS, on the other hand is, "IP Multi-Media Sub-system". Taken > > outside of the mobile telco/GSM context, this term will be a very vague > > term. > > > > Would you rather reconstruct your Question to: > > > > "What are the major challenges for the mobile telco industry in adopting > > SIP as their choice for IMS?" > > > > > > > > > On 8/26/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > > >> From: "Arnab Biswas" <[EMAIL PROTECTED]> > > >> > > >> I am just curious to know what are the major challenges SIP is > > >> going to face, specifically on its use in the IP Multimedia > > >> Subsystem framework. > > >> > > >> Many people in the SIP community would say "The desire by the telcos > > >> to replicate the architecture (and service provider control) of the > > >> PSTN." > > >> > > >> Dale > > >> _______________________________________________ > > >> Sip-implementors mailing list > > >> [email protected] > > >> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > >> > > >> > > > _______________________________________________ > > > Sip-implementors mailing list > > > [email protected] > > > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > > > > > > > > > > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
