PORTech Communications Inc. is a manufactor in Taiwan. We have VoIPi GSMi Gateway , E1/T1 GSM Channel Bank,skype gateway. 

MV-370 is a VoIP GSM Gateway for call termination (VoIP to GSM ) and origination (GSM to VoIP). Support Asterisk.
*GSM frequency:
  Dual BAND:900/1800 MHZ
  Tri Band: 900/1800/1900MHZ
  Quad Band:900/1800/1900/850MHZ

Nov 7, 2006 —Grand Digital Information Ltd. announced today the official release of 2 new products models (GIP300 IP phone and GIX100 ATAs)

The Grandi GIP300 IP phone is a new entry level IP phone. GIP300 has dual 10/100M Ethernet ports that can be configured as either switched or routed ports, built-in NATi router/DHCP server, high quality full duplex hands-free speakerphone with acoustic echo cancellation, headset jack, message waiting indicator, and more memory for future function growth. It supports G.711i, G.723.1i, G.729A/B. GIP300 is able customer to register two SIP servers simultaneously. In addition, you could download music ringing tones and the GIP300 provides as many as eight kinds of ring tongs.

An Open Source SIP and media stack with good features, portability, performance, and small footprint, written in C.

Open Source, SIP VoIPi system with H.323 and MGCPi translators. Includes a provisioning and CDRi functions

Acts as a host for IP communications service modules and as an intermediary for interactions with other entities in a distributed architecture (web servers, IVRi etc.). Service modules include: CPLi, Presence, IM, 3PCC, Multimedia, VPN.

Dual-tier load balancing technique provides a scalable and redundant SIP infrastructure.

JAIN-based

The Teligent SoftSwitch is the core and central point in the Next Generation Switching architecture. Built on a proven telecom platform, it offers outstanding availability, flexibility and scalability

Email, groupware, & SIP server software solution for integrated real-time communications. Offered as Single Server or Dynamic Cluster (99,999 Uptime). Supports VoIPi/Video, IM, & more. 30+ platforms.

Sonetel provides a free, global phone system for companies that uniquely offers enterprises to move from an on-premise based software solution to a hosted model, whenever they wish. Neither of the options carries any cost for the enterprise.

snom 4S Features:
A SIP telephony infrastructure built on a snom 4S fulfils all requirements on modern telephony. Voice Mail,
Conferencing, Scripting, STUN, CDRs, RADIUSi, CID, MWI, VM, much more...

VOIP Gateway(8ports&4pors&2ports) support H323&SIP
1port VOIP Gateway and IP Phone support H323&SIP&MGCPi&N2Phone
GSMi Gateway(1200MHZ&1800MHZ&1900MHZ)
We also do OEM products .

NextBX - The Call Server Softswitch that gives enterprises and service providers an easy entry into the world of Value added services with IP Telephony and VoIPi

PortaSIP allows delivering of new communication services at low start-up and operating costs.

The PortaSIP Solution, consisting of SIP Proxy Server, and B2BUAi provides a platform to deliver innovative services that can be deployed over IP, cable, or broadband networks.

SVVInG (Simple Voice and Video Internet/Intranet Grid) is a platform (gatekeeper + SIP Proxy + Regitrar + BSC + Presence, etc.) for the deployment of Voice and Vide IP services.

SIPxchange is a complete open source enterprise IP voice solution for any offices from 10 to 250 seats.

includes portable SIP stack; SIPLets framework

Nortel Networks Multimedia Communication Server 5200 (formerly known as the Interactive Multimedia Server or IMSi) allows service providers to deliver SIP-based hosted services.

The Multimedia Communication Server (MCS) 5100 delivers multimedia and collaborative applications to the enterprise on an \"open\" platform that supports industry-standard protocopls.

The Multimedia Communication Server (MCS) 5100 delivers multimedia and collaborative applications to the enterprise on an \"open\" platform that supports industry-standard protocopls.

The SIP Audio Server supports SIP-based conference call services and provides network-based announcements.

NICIVR is a professional software solution for
service creation in the VoIPi architecture. Speaks SIP
directly to industry leading softswitches and gateways
to provide applications such as calling card

Shipped on a CD the 7000 CS is a full SIP-PBXi. The disk includes a full Linux OS and firewall (ALGi), SIP proxy and media server. Auto attendant and voicemail included.

Packaged for SMB and ITSPs the 7000 ICS is a turnkey solution. Includes vmail, autoattendant, dialplan, voice-networking, GUI based, IPDR logs. B2BUAi, media server, SIP proxy/registrar

open source cross-platform SIP proxy/registrar/redirect server, written in java, based on MjSip stack, freely avalible under GPL

CPLi support, Linux/FreeBSD/VxWorks builds

SMB SIP (RFC3261) IP PBXi, 4 phones upgradeable to 16 phones, 2 FXS, IVRi/ACD, Voice Mail, DiffServ)/TOS, upgradeable to IPv6 (RFC 1883), SNTP, STUN, Codecs: G.711i, G.726i, G.729i A, G.723.1i.