Fixed setting initial timeout for incoming subscriptions

Ignore-this: 2c59019933e26fa163b8d03834ba0702

darcs-hash:20130124172120-56b4d-1519fd452fc479de2596c907ab8acfa43a9b69ff
Simplified PJSIP patch

Ignore-this: 41870b2c00e8d31365503675fb793972

darcs-hash:20130124174829-56b4d-8b0d1832c5bd9ea4a1f4341ec1d578fe1a6e9ae0