Aug 03, 2007 · I have been configuring a 3Com 3CR17571-91 POW switch this week. Again the default password is not listed in the manuals. The admin username is : admin and the default password is blank. Hope that saves you some time if you are setting up one of these. So far I'm not impressed with the quality of documentation from 3Com. View and Download 3Com 3102 user manual online. NBX Business Telephone. 3102 Telephone pdf manual download. Also for: Nbx 2102, 2102, 2102-ir, 1102, 3105, 1105. Find 3Com software downloads at CNET Download.com, the most comprehensive source for safe, trusted, and spyware-free downloads on the Web May 16, 2011 · I have a request to get Exchange 2010 UM working with a 3COM Phone system. I am able to direct a call to exchange but not able to get it to the correct mailbox. I have been searching for some information but have not had any luck. Does anyone know of any articles or have information on a 3com system and UM? Phones we sell and support. These are pre-configured phones that you can order directly from AT&T [email protected] These plug & play phones are fully supported and designed to work with your AT&T [email protected] phone system out-of-the-box. Simply plug your phones into your Internet router and make calls instantly.