GSM Gateway offers a 4G LTE enabled flexible GSM solution for the Open Source IP PBX & Call Center Dialers.
*astTECS GSM Gateway is designed to provide seamless connectivity and communication for businesses. With its advanced features and capabilities, it enables efficient call management and routing, ensuring high-quality voice communication over 4G LTE networks. The solution is ideal for organizations looking to enhance their communication infrastructure and leverage the benefits of IP-based telephony.
*astTECS - Communication Solutions
*astTECS is a market leader in end to end unified communication and enterprise mobility products based on Asterisk Open Source Technology.
*astTECS provide a complete suite of Enterprise Telecom Products with advanced features at a much affordable cost With a strong focus on customer needs.
GSM Gateway - 4G LTE Enabled Flexible GSM Solution

VoIP 4G LTE GSM Gateway functions as Trunk for IP PBX or Call Center Dialers to connect the users to the GSM Network. It allows direct routing between IP and GSM Networks. GSM Gateway can reduce the office Telephony Bills by upto 60% with Least Cost Routing (LCR). It can also be used to send and receive SMS Messages. GSM Gateway also functions as a backup to the PRI or Analog trunk lines. SIM Cards can also be connected to GSM Gateways, after which SIMs can be used in rotation.
* astTECS GSM Gateway converts your landline to mobile calls into mobile to mobile calls. Thus helps in reducing 50% of your Telecom expenses.
Key Features of *astTECS GSM Gateway through Expertise Wave Solutions
- 4/8/32 GSM/CDMA/WCDMA Channels.
- Up to 4/8/32 Concurrent Calls
- SIM Card Slot: 4/8/32 Channels
- API for SMS Sending and Receiving
- GSM: Quad-band 850/900/1800/1900MHz
- USSD, Open API for SMS/USSD
- PSTN and VoIP Hotline
- BCCH
- PIN Code Management
- Flexible Dial Rule & Manipulation Rule
- G.711A/U law, G.723.1, G.729A/B
- Silence Suppression & Detection
- Comfort Noise Generation(CNG)
- Voice Activity Detection(VAD)
- Echo Cancellation(G.168)
- Adaptive (Dynamic) Jitter Buffer
- Call Progress Tone Generation
- Programmable Gain Control
- Frequency Range: GSM: 850/900/1800/1900MHz
- SMS/SMSC/USSD
- SMS Coding/Decoding: ASCII/UCS2
- Open API Protocol
- PIN Code Management
- Call Duration Limitation for SIM
- Card/Single Call
- Polarity Reversal
- Answer Delay (CDMA)
- Carrier Selection (GSM)
- Caller ID Restriction for Outgoing Call
- BCCH Management
- Call Waiting
- Call Forwarding
- Telnet Configuration
- Firmware upgrade by HTTP/TFTP
- Configure Backup/Restore
- VoIP Call Statistics
- Outbound Proxy
- System Logs
*astTECS GSM Gateway - Expertise Wave
*astTECS GSM Gateway is a powerful solution designed to enhance communication and connectivity for businesses.
With its advanced features and seamless integration, it provides a reliable platform for managing voice and data traffic efficiently.