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Dyfyniad Arddull ChicagoGoncalves, Flavio E. Building Telephony Systems with OpenSER: A Step-by-step Guide to Building a High-performance Telephony System. Birmingham: Packt, 2008.
Dyfyniad MLAGoncalves, Flavio E. Building Telephony Systems with OpenSER: A Step-by-step Guide to Building a High-performance Telephony System. Packt, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.