[Serusers] Finding the right hardware to work with SIP

Could someone tell me if Cisco ATA 186 should work ok with SER? Or someone tried it even if direct device-to-device voice vpn? The data about this gateway i've quoted it below. Any suggestion about equipments like routers, gateway to regular phones (analogue), PBX gateways to VoIP would be appreciated because we have bought two Draytek Vigor VoIP enabled routers with VPN support and now the fabricant tolds that the problem that we have is because of some firmware problems to be resolved in March by the time of Cebit event. :-( Thanks in advance Helder Voice-over-IP (VoIP) protocols H.323 v2 H.323 v4 SIP (RFC 2543 bis) MGCP 1.0 (RFC 2705) MGCP 1.0/network-based call signaling (NCS) 1.0 Profile MGCP 0.1 SCCP Voice codecs1 G.729, G.729A, G.729AB2 G.723.1 G.711a-law G.711µ-law Cumprimentos / Best regards, Helder Rogério __________________________________________ Microrede - Tecnologias de Informação, Lda. Rua Lopes, 55 - C/V E 1900-297 Lisbon Portugal Tel. 21 8148372 Fax. 21 8127158 Web: http://www.microrede.com *** « There are only two types of people in the world, those who have lost data and those who will. » -- Richard Nixon