Veer, A.S. and Bhardwaj, S. 2024. Comprehensive cost analysis of voice call recording storage with and without NAS and GSM gateway integration via unified communication server. Edelweiss Applied Science and Technology. 8, 6 (Nov. 2024), 4219–4234. DOI:https://doi.org/10.55214/25768484.v8i6.2922.