BroadSoft’s stock is up about 31% this year to $53.90 as of Friday’s close, while Cisco’s has risen about 13% to $34.25.
Cisco shares were up 0.6% to $34.44 in premarket trading, while trading shares in BroadSoft was halted.
BroadSoft makes a so-called unified communications software product that combines video, voice, messaging, screen sharing, file sharing and conferencing in an application accessed online.
The company also makes software for call centers and team collaboration that workers can access online.
The company sells software to a range of customers such as large service providers.
Although Cisco’s over all revenue declined 4% in the most recent quarter from the year-earlier period, the company increased by 50% the portion of product deferred revenue related to recurring software and subscriptions.