The official Cisco WebEx Hybrid Audio SDK by Cisco provides VoIP integration for telephony service provider partners. It allows to integrate VoIP client with meeting center to use a method of 'call using computer' to join audio conference calls. To download the zip file, Cisco members should log into an existing account or create a new account.
Telephony and voice APIs are one of the most active segments of the API and mashup world. For example, in the past week, two of the latest mashups in our directory use telephony APIs in innovative ways (the directory has 42 telephony-related APIs):
Earlier this month, Twilio announced that the company joined the Google Cloud Platform Partner Program and that the Twilio API had been integrated into the Google App Engine. Twilio (in partnership with KDDI Web Communications) has now announced the launch of Twilio for KWC, bringing the Twilio API to the Japanese developer community.