SCHAUMBURG, Ill. (AP) -- Motorola Inc. said Friday that it has purchased the base station business of RadioFrame Networks Inc., which uses a technology that allows walkie-talkie features on cell phones.

Terms of the deal were not disclosed.

The technology, called Integrated Digital Enhanced Network, or iDEN, allows cell phone calls to travel on the same network as communication from two-way radios, faxes and pagers. It is used by carriers such as Sprint Nextel Corp.

Motorola created the iDEN technology, which RadioFrame licensed for its base station products. These base stations are placed in cell towers that route mobile phone calls.

While Motorola also makes its own base stations, it purchased RadioFrame's base stations because these use less power and are less costly for carriers to use.

Motorola said RadioFrame's base station business will be folded into its Home and Networks mobility unit.

Shares of Motorola were down 21 cents, or 2.5 percent, to $8.27 in morning trading.