Key Specifications & Features

• Supports up to 16 mobile channels (i.e., 16 SIM/antenna ports) bridging mobile networks (2G/3G/4G) to SIP/VoIP. Dinstar+3VDS | IP PBX / PABX Installer & Supplier+3Telco+3

• Network support: GSM 850/900/1800/1900 MHz; depending on variant 3G/4G bands also supported. Telco+2VDS | IP PBX / PABX Installer & Supplier+2

• VoIP/SIP support: SIP v2.0 (RFC 3261), UDP/TCP/TLS support, codecs G.711 A/µ, G.723.1, G.729A/B etc. Com1 PBX+1

• Features: Hot-swappable SIM slots, SIM card management, SMS/USSD support, HTTP API for SMS, VoIP ↔ Mobile routing. VDS | IP PBX / PABX Installer & Supplier+1

• Physical / hardware: Rack-mountable (1U), e.g., dimensions ~440×270×44 mm for some variant. Power supply 100-240 V AC. Com1 PBX+1

⚠️ What to Verify / Consider Before Buying

Given you’ll deploy this in India (Bengaluru) with enterprise/mobile trunking use, make sure to check:

1. Band & network compatibility – Verify that the specific model variant supports the LTE / 4G bands used by your mobile operator in India (if you plan to use 4G/VoLTE functionality). Some variants might be GSM only.

2. Channel load & capacity – While “16 channels” is the nominal spec, check how many simultaneous calls it supports reliably (especially if using 3G/4G or with SMS/USSD heavy load).

3. SIM & antenna infrastructure – You’ll need 16 SIM cards + 16 antenna ports or suitable combiners. RF signal strength, isolation and antenna planning matter in dense setups.

4. Integration with IP-PBX / SIP trunk – Ensure your SIP trunk / PBX supports the required codecs and DTMF modes (RFC2833, SIP INFO) and that the gateway supports NAT/firewall traversal, QoS, etc.

5. Power & rack environment – Ensure you have proper rack mounting, ventilation, UPS/power supply for a 1U device with 16 channels.

6. Support, firmware & spares – Check that Dinstar has a local distributor or reseller in India, firmware updates available, and spare parts (especially if something fails).

7. Regulatory / operator compliance – If using mobile channels for trunking/origination, ensure compliance with Indian telecom regulations (SIM usage, operator approvals).

8. Cost of ownership – Beyond hardware, consider SIM card costs, antenna installation, cabling, configuration/commissioning, potential expansion in future.