KEY FEATURES
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Supports up to 3000 users and up to 450 concurrent calls
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Zero configuration provisioning of Grandstream SIP endpoints
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Built-in conferencing & meetings platform; supports desktop, Wave app, and SIP endpoints
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Wave for Android, iOS, Chrome and Firefox browsers allows communication with all UCM6300 users & solutions
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API available for third-party integrations, including CRM and PMS platforms
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Advanced security protection with secure boot, unique certificate and random default password to protect calls and accounts.
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Three Gigabit auto-sensing RJ45 network ports with integrated PoE+ and support NAT router
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Automated NAT firewall traversal service facilitates secure remote connections
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Supports Full-Band Opus voice codec and H.264/H.263/ H.263+/H.265/VP8 video codec, jitter resilience up to 50% packet loss
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Compatible with GDMS for cloud setup, management and monitoring
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Based on Asterisk* version 16 open source telephony operating system






![[GRP2615] Grandstream GRP2615 10 Lines 16 SIP PoE 4 (1).png](https://static.wixstatic.com/media/de5f09_5558f8623f9b41c4b12a0781ed526850~mv2.png/v1/fill/w_344,h_344,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/%5BGRP2615%5D%20Grandstream%20GRP2615%2010%20Lines%2016%20SIP%20PoE%204%20(1).png)