Proxy registraoin problems,

Hi there,

Basically im having a few issues keeping a solid registration to a Sysmaster VM. Now this maybe a proxy issue but i wanted to ask for your opinions in what settings i should have in my sip.conf for the most highly availiable registration.

Im currently using;

defaultexpirey=60
nat=yes ( to keep communications active and so i could use qualify=)
qualify=850 (from what ive read this can defined in milliseconds, so my theory was to use this as a keep alive)
tos=0x14 ( high reliability(0x04) and low delay(0x10)
type=provider

If anyone can suggest anything to improve this configuration i would appreciate it.

Regards,

Nick

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