HHUS, HHEU, and HHAP allow only devices listed in our Supported Endpoints document to connect to the network, to assure trouble-free and reliable provisioning. All other non supported endpoints can be used on HHX(Experimental). The HH Operator's Team (HHOPS) are a small group of volunteers who dedicate some of their personal time to administrative duties and we want to ensure their burden is kept as low as possible. To achieve this, we will maintain a list of supported equipment. As of March 5, 2018, HHUS, HHEU, and HHAP will no longer provide SIP accounts solely for softphones. In all cases, a member must have a provisioned and connected hardphone on HHUS, HHEU, and HHAP network before HHOPS will allow that member to use a softphone on these listed servers(This does not apply to HHX). The intention is to ultimately discourage the use of softphones in general. The only exception to this is a SIP or IAX account issued solely for the purpose of trunking to another PBX that is member owned, in such case, the request will be granted by HHOPS.