Leveraging the enterprise-grade tunneling technology, Yeastar Linkus Cloud Service Pro (LCS Pro) clears all obstacles of remote SIP access & communications for S-Series VoIP PBX users. It provides encrypted remote connection for Linkus UC Clients in no time and offers a dedicated PBX domain name (FQDN) for secure, effortless registration of remote SIP endpoints to the PBX. Wherever your teams work and whatever SIP devices you use, rest easy with secure and uninterrupted business communications, irrespective of the locations.