SunComm SC-1695i - 6 Glossary

User Manual
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SunComm Technologies Co., Ltd.
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6. Glossary
GSM: Global System for Mobile Communications
CDMA: Code Division Multiple Access
FMC: Fixed Mobile Convergence
SIP: Session Initiation Protocol
MGCP: Media Gateway Control Protocol
DTMF: Dual Tone Multi Frequency
USSD: Unstructured Supplementary Service Data
PSTN：Public Switched Telephone Network
STUN: Simple Traversal of UDP over NAT
IVR: Interactive Voice Response
IMSI: International Mobile Subscriber Identification Number
IMEI: International Mobile Equipment Identity
DMZ: Demilitarized Zone