location = /old/ {
	return 301 /classic/;
}
location = /software/im/ {
	return 301 /software/real-time-communication/;
}
location = /software/voip/ {
	return 301 /software/real-time-communication/;
}
location = /software/teamchat/ {
	return 301 /software/real-time-communication/;
}