Meissen Investment Spain
- Hosted VoIP billing service provider
- International VoIP Wholesale Provider
- Internet Telephony Service Provider
- Internet VoIP and Video Conferencing Service Provider
- SIP Billing
- VoIP Billing Software Provider
- Voip consulting
- Voip Termination ISP
- Billing Software
- Call Relay VoIP Solutions
- Call Routing VoIP Solutions
- E1 Bulk Wholeseller
- Gatekeepering
- H.323 Softswitch & CPE
- H.323 VoIP Gateway
- H.323 Wireless/ GSM VoIP Solutions
- IP devices
- Outsourced Billing
- Partnering for Origination and Termination
- SIP Softswitch & CPE
- SIP VoIP Gateway
- System Integration
- Termination
- Cisco Systems
- Dialogic Based
- Lucent
- Quintum
- Billing system of own development
Grandstream GXP2200 is the first desktop IP Phone from Grandstream running on Android operating system.
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