Vincent Luba wrote:

Hello,

We would like to use SER in a production environment and provide presence support to at least 5000 *online* users through a publicly available service.

We are particularly worried about scalability.

• How stable is the presence module?

What kind of presence do you want to use? - End-2-End: you do not need the pa module - server based: you do neet the pa module

the pa module is IMO not stable, and does support only certain clients.

Which clients do you want to use?

regards klaus

• Does it support RFC3857 to allow authorization management of

subscriptions?

• For such a big number of users, do we need several computers running

SER?

• If so, how can we ensure that all SER servers have the required

information to be able to send status changes to all users? Is that stored in a MySQL DB and if so, how is it determined which SER server sends the NOTIFY on state changes to all users having the user whose state changed in their list?

• Are there bandwidth estimations? I have the feeling that 5000 online

users will generate many NOTIFY messages due to presence changes.

• Is it possible to prevent MESSAGE requests to be sent following some

piece of information found in the database? We would like to connect SER to a SMS service, and prevent users to send SMS'es when their credit is not enough. That supposes some computation in the ser.cfg file, is that possible?

Greetings,

Luba Vincent

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