Mark CaseySep 5, 20211 minThe great ISDN switch offis your telephone system still using ISDN outside lines? It’s very easy to convert older systems to SIP trunks and continue to use it.
Mark CaseyJan 28, 20201 minCAT5e /6/7/8Proving structured cabling services with manufacturer certification.
Mark CaseyJan 28, 20201 minWelcome to London City CommsWelcome to the new news page of London City Comms for the latest information about technology and about our company. So here you have an...