Originally posted by Tako Kichi ... I live in a rented house and the landlord may not appreciate antennas mounted on their property).
Mike, I will have to check out your link as I do use TeamSpeak and have used a similar system in the past which allowed me to hook up to a local repeater in my home town in the UK and talk to old friends.
Larry, in the last few months there has been something of an explosion of interest in so-called "network radio". Nothing new, really, just a well-co-ordinated series of VoIP, RoIP and interlinked-node communications services aimed sometimes at hams, and sometimes both licensed and unlicensed operators. There are even dedicated network radios for sale that are based on mobile phones, but in radio-like format with PTT buttons and other controls - though many people are just using their PCs or smartphones, and they work perfectly well.
It's not a replacement for HF radio, nor even for analogue VHF/UHF really, but even the non-RF portions of it are being moderated and regulated with the expectation that people use proper amateur operating practices. It's better-behaved than my local repeater, in all honesty... A really great way to stay in touch with other hams, and there are many people like you who simply can't put up antennas who are using this as a means of staying involved with the hobby.
"The Guild" organisation's efforts to bring together all of the various digital and analogue platforms via cross-links means that people can still use RF, but without the need for equipment and antennas at home (just a PC, phone, or dedicated "network radio" unit using wi-fi or 3G/4G). Or, they can choose to simply chat with others on a purely VoIP link. I spoke to a lovely gentleman the other evening, a fellow in his late 80s and now in a retirement home. Because of network radio, he can still enjoy his hobby (in a slightly different way), even though he can't have radios and antennas where he lives. I think that's fantastic, and I intend to do whatever I can to support the organisation and promote their cause