Cite
APA Citation
Roy, R. R. (2018). Handbook on session initiation protocol : networked multimedia communications for ip telephony. Place of publication not identified : CRC Press. http://access.bl.uk/ark:/81055/vdc_100073451442.0x000001
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Roy, R. R. (2018). Handbook on session initiation protocol : networked multimedia communications for ip telephony. Place of publication not identified : CRC Press. http://access.bl.uk/ark:/81055/vdc_100073451442.0x000001