This paper reviews the communication technologies employed in the Nigeria National Network of Seismographic Stations (NNNSS) operated by the Centre for Geodesy and Geodynamics with the purpose of eveluating the advantages and the drawbacks inherent in the various technologies for reliable seismic data transmission. The traditional Public Switched Telephone Network (PSTN) Dial-up service which can provide intranet service capable for data transfer is most cost-effective but not viable in Nigeria. Employing Advanced Technology (AT) commands on Global System for Mobile Communications (GSM) Modem platform to transmit seismic data as Short Message Service (SMS) was first used but the dynamic and lossy nature of GSM firms posed several challenges in reliable telemetry of seismic data from remote seismographic stations to central station. Furthermore, utilizing the General Packet Radio Service/ Access Point Name (GPRS/APN) technology with mobile router tends to moderate the available resources to realize near real-time transmission of data but the lack of required applications from operators posed serious challenge on networking our seismograhpic stations. By optimizing Very Small Aperture Terminal (VSAT) link technology a seismic network operation for real-time processes and auto locating of events are largely practicable as well as reliable for the quality of data transmission.