Friday, April 16, 2010

Life as an intern: Week 2

This is has been  more fun. I was introduced to Session Initiation Protocol (SIP). The SIP is an ICTF-defined signaling protocol, widely used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP). The protocol can be used for creating, modifying and terminating two-party or multiparty sessions consisting of one or several media streams. The modification can involve changing addresses or ports, inviting more participants, and adding or deleting media streams. Other feasible application examples include video conferencing, streaming multimedia distribution, instant distribution, instant messaging, presence information, file transfer and online games.

this is a simple SIP

this is a complex SIP architecture

It took me two days to learn all about SIP and next was the application. I was asked to create an account on AsteriskNow. Its a server used by my company. My extension number was 2001. This enables me to call the other extension numbers and also my mailbox at extension 8888. I was given half a day to test the features on the softphone.

this is the softphone, X-lite

After having fun calling different extension numbers, it was time for some research. The topic was Host Media Processing (HMP). HMP is a term used to refer to a telephony system that uses the million of instructions per second (MIPS) of processing power on a general-purpose computer to process a telephony call's media stream rather than use digital signal processors (DSP) to perform the task.

Host Media Processing

Towards the end of the week, I was asked to research on WellRec 5600 and WellTech 6500. 

WellRec 5600 is a dedicated VoIP recorder for Welltech SIP network architecture. Just simply setting the subscriber or the target list to be logged in WellSIP 6500, WellRec 5600 will do the recording on demand no matter incoming call or outgoing call. Through the web interface, administrators can easily search and play the recorded VoIP call anywhere. It provides a very cost/effective solution to meet your VoIP logging service.

WellTech 6500 is the best choice to your convergence VoIP network which convert the requirements from enterprise to service provider. With built-in rich telephony services, WellTech 6500 enables traditional PABX features to your VoIP convergence platform. Also you can easily upgrade the license or provide the high available service according to the growth of your business without any hardware changes.

WellTech 6500

So far..this week has been good! :)

-thanks faithful listener-

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