> On 16 Oct 2017, at 22:24, José Seabra <joseseab...@gmail.com> wrote: > > Hello there, > I'm writing here in order to get your experiences about a Presence & IM > server. > > I would like to know what is the best solution to follow: > SIP Simple or XMPP? > > I've more knowledge about SIP Simple with kamailio but i did some researches > and i found several open sources unified communications software that's > implement Presence and IM using an XMPP server. > So what is your opinion about which is the best solution to choose, taking in > considerations the following aspects: > scalability > interopeability > permornace > features(like: Personal assistance, voicemail integration, chat group, > integration with social media) > Should i choose Kamailio SIP Simple with xcap or an XMPP server(Prosody or > ejabberd, etc) > > I will appreciate a lot your opinion.
With very sad eyes I have to say that SIP Simple is a big failure. There’s no interoperability as every vendor did their own thing and there was no focus on interoperability in the group. Vendors have stated to me that they just want their customers to buy their servers and their clients and problem is solved. I tried really hard to set up a vendor-neutral solution but failed miserably - the various clients and servers parse the standards in different ways. The working group is closed and I have seen almost no activity in the IETF in that area since. XMPP on the other hand thrives and continues their development. There is a core of developers that work with standards and interoperability and it continues. I think scalability, performance and features are almost the same, but XMPP wins in regards to interoperability. And please José, don’t start diving down into the SIMPLE specifications, because there are way too many from different organisations and you’ll end up quite mad. This is my personal view after a complete failure trying to build a Lync competitor based on open standards. The bad feeling in my stomach may affect my clarity in this matter. ;-) /O
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