The overall tone of the review was positive with little mention of caveats in the software. This was also the first review mentioning its REST API.[48] At the time, there were no alternative dial-in numbers, which they pointed out in their article. On December 14, 2013, Zoom has since implemented dial-in access in the release of version 2.5 of its software.[49] On September 2013, when Zoom Video Conferencing has been released for six months, Emily Read wrote a comprehensive review of the software, in which she noted that "it's perfect if you want to record your meeting, or share your mobile screen" but "while there's no time limit on one-on-one calls made with a free account, a potentially annoying issue is that group calls using a free account are limited to a maximum of 40 minutes".[50] Read also considered the software useful for "clients, friends or family who don't have Skype or Google+" as a result of the ability to join a meeting without registering accounts.