Please refer to the following specifications for details.

Supported Call Control Protocols

Recommended setup: H.323 Support with FastStart and H.245 Tunneling ON, G729r8

•  ITU H.323, Versions 2, 3, 4
• FastStart and SlowStart scenarios 
• Interdomain GK support through LRQ messages
• SIP, Version 2 - GKTMP (Cisco Gatekeeper Transaction Message Protocol) V. 1.0
• 3.01 - LRQ, ARQ, and RRQ messages
• Interoperability between H.323 and SIP Protocols in both directions
• G729 and G723 codecs supports

Supported Equipment

CarrierConnect Supports MOST equipment including: 

• H.323-compliant gateways and gatekeepers
• SIP-compliant gateways and proxies
• Agat-RT AVG VoIP equipment
• Antek Networks Inc. VoIP equipment
• AudioCodes VoIP equipment
• Avaya (Lucent Technologies) VoIP equipment
• Cisco ATA186, 1750, 18xx, 26xx, 28xx, 36xx, 38xx, AS53xx, AS54xx, 7200 other Cisco equipment with VoIP modules and IOS versions later 12.1.
• Clarent VoIP equipment - Computer Protocol (Malaysia)
• Dialogic IPLink VoIP equipment - Dialpad soft phone 
• D-Link VoIP equipment
• ECI Telecom I-Gate 1000
• Equivalence (Open H.323)
• EyeP Media VoIP equipment
• Incomtel TG (Russia) Softswitch
• Intel VoIP equipment
• MediaRing Proxy Server
• MiBridge VoIP equipment
• MERA VoIP Transit Softswitch
• Asterisk soft PBX - GNU Gatekeeper
• MockingBird Networks GW
• MultiTech VoIP equipment
• OKI Network Technologies GW
• Opto Telelinks (Germany)
• ProxySER SIP proxy server
• Quintum GW Tenor series.
• SoftJoys Labs VoIP equipment
• Sonus Networks VoIP equipment
• Sipura VoIP adapters
• Telogy Networks (TI's company)
• Vive GSX9000
• VocalTec VGW 4/8/120/480/2000, IPL 6.x, Surf&Call
• VEA versions: 1.3, 1.4, 1.5, 2.0
• VGW120 versions: 4.3, 4.4, 4.5, 20.1
• Vocord Telecom GW