Analog GSM Gateway Topex Voxell is a simple and reliable way to reduce the cost of mobile communications for small and medium-sized companies. By connecting Voxell to a corporate telephone system you will be able to send all outgoing mobile calls through a gateway directly to the cellular network that supports GSM/3G standards, skipping expensive connections through wired lines.
From mobiSIP Android or iPhone: SIP Client iPhone is uniquely designed and developed to add the power of making voice over internet transfer protocol calls directly through the Android or iPhone. It’s developed by mobisnow.