Aculab SIP gateways
Aculab was founded in the uk in 1978 and this remains the location of the head office. it was from this base that aculab's commitment to global customer satisfaction was developed and spurred the opening of further offices in the us, germany and australia.
http://www.aculab.com/
Audio Codes gateways
Voip, vop chip processors and voice over ip packets solutions developed by audiocodes, leaders in the voip market for voip equipment and voip technology.
http://www.audiocodes.com/
AVM FritzBox VoIP gateway
Avm ist einer der führendenen hersteller von hardware und software für dsl, isdn, bluetooth, wlan und voip. bekannt ist avm vor allem durch die produktreihen fritz!box, fritz!card, fritz!x und bluefritz!.
http://www.avm.de/en/