APA (7th ed.) Citation

Abdul Rahman, A. W., & Erdogan, S. S. (2009). Low cost softswitch using SIP protocol.

Chicago Style (17th ed.) Citation

Abdul Rahman, Abdul Wahab, and Sevki Serkan Erdogan. Low Cost Softswitch Using SIP Protocol. 2009.

MLA (9th ed.) Citation

Abdul Rahman, Abdul Wahab, and Sevki Serkan Erdogan. Low Cost Softswitch Using SIP Protocol. 2009.

Warning: These citations may not always be 100% accurate.