This is a distinction arising from the integration of SER and Kamailio into sip-router. Selects come from the SER side, while PVs come from the Kamailio side.

You can use either one depending on your needs; there is no methodological prescription here, want one though you may. :-) Beware that the @... syntax for accessing selects is not recognised/evaluated inline to a string literal by most functions that take PVs in their arguments, though, so you'd have to wrap the select inside the PV container for accessing them: $sel(...)

Obviously, there are things selects provide that lack corresponding PVs, such as much more granular SIP message attributes, access to global cfg_get variables, etc. But in terms of it being better to use one or the other, or the theory that one is somehow deprecated at the expense of the other -- that is not the case.

-- This message was painstakingly thumbed out on my mobile, so apologies for brevity, errors, and general sloppiness.

Alex Balashov - Principal Evariste Systems LLC 260 Peachtree Street NW Suite 2200 Atlanta, GA 30303 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/

On Jan 28, 2012, at 3:16 AM, Spencer Thomason spencer@5ninesolutions.com wrote:

Hello all, I'm currently reworking our routing scripts in preparation for an upgrade to 3.2.2 from 3.1.5. I'm taking this time to perform a general cleanup an optimization. In regard to selects vs PVs, is there any reason to choose one or the other select over a PV when both exist for the needed data?

Thanks, Spencer

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SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users