| Subject | English | Russian |
| sec.sys. | data compression modem | модем со сжатием данных |
| IT | modem compression | уплотнение данных модемом |
| comp., MS | modem compression | сжатие данных модемом (A technique used to reduce the number of characters transmitted without losing data content. The transmitting modem compresses the data and the receiving computer or modem decompresses the data back to its original state) |