The ZelloWork Crosslink feature allows networks to share their channels with other ZelloWork networks. This allows you to communicate with another company using ZelloWork push-to-talk. This is helpful if your company works with vendors or partners who need to communicate with your teams on a regular basis and they also have a ZelloWork network. 

You can accept the invitation to start communicating with the other company at no risk. You can always close or delete Crosslinks at your own convenience. 

Learn more about Crosslink here.