AddPac satellite based IP telephony solution enable the high-quality VoIP (voice over IP) communications by using satellite based internet. Fault tolerant dual redundancy IP-PBX system, voice MCU, VoIP gateways, various IP phones (AP-IP300, AP-IP230, AP-IP120, AP-IP90, etc) are main components of satellite based IP telephony solution.
Dual redundancy IP-PBX system supports the dual CPU boards and adopts the dual HDD system per CPU boards for hard disk redundancy. Also, dual redundancy IP-PBX supports the dual internal module type power supply. It’s ideal IP-PBX system for medium and large businesses taking a full advantage of system stability.
Normally, under satellite network environment, burst packet error and packet jitter is frequently occurred because of satellite wireless characteristic. Thus, for reliable satellite VoIP communication, VoIP gateway systems should be support strong QoS function to reduce or conceal packet errors like as packet loss, packet jitter. Also, VoIP gateways support advanced transmit scheduler function for VoIP traffic shaping. AddPac VoIP gateway is optimum solution for reliable satellite VoIP communication.
Many features of AddPac IP phone are highly distinguished and they have been designed in high voice quality DSP-based hardware architecture and integrated with Acoustic Echo Canceller which supports the built-in microphone and 2-way communication of full duplex. Also IP phone supports SIP VoIP signaling protocols and a wide range of voice codec of G711, G726, G729 and G.723.1 depending on bandwidth availability, so AddPac IP phones can be used in just about anywhere with internet connection. This emergency telephone has been implemented with QoS to comply with the packet error and all different kinds of latency on internet, especially in a limited bandwidth situation like as satellite. Also, AddPac IP Phone supports FXO PSTN Interface as an option and external headset interface.