job offer for sms and voip call module on dolphin

I am looking for a developer, who can handle the below development

1 .. sending sms to PSTN  (members sending per day to be regulated thru admin)

2... making calls (members are able to make normal voip calls via the portal if the member has credit to make such call)

basically, webdialer will be required for the members to make such calls within, such as the similar one present in GMAIL, call phone options