Our team has unrivalled knowledge of fixed and mobile telephony / voice communications including:
Direct line signal post telephones (SPTs) / point zone telephones
Emergency phones / PETS systems
SPT concentrator systems from Siemens / Enterasys, Northgate / Damovo, Ericsson, BT Syntegra, STS, Kestrel etc.
Voice recording systems
Mobile telephony (GSM-R)
Legacy in-cab systems (CSR / IVRS)
Voice Over IP (VOIP) systems