Grandstream UCM6510

The UCM6510 IP PBX appliance is designed to bring leading edge voice, video, data, and mobility features to enterprises, small and medium businesses, retail and residential environments in an easy-to-manage fashion. This enterprise-grade on premise IP PBX supports E1, T1 and J1 networks and offers scalability by supporting up to 2000 users. The UCM6510 sports a 1GHz quad-core Cortex A9 processor, 1GB RAM and 32GB flash. This secure and reliable IP PBX delivers unified communication features at an unprecedented price point without any licensing fees, costs-perfeature, or recurring fees.


  • 2000 Users

    2000 Users

    Supports up to 2000 users, 50 SIP trunk accounts, up to 200 concurrent calls

  • Zero Config

    Zero Config

    Zero configuration provisioning of Grandstream SIP endpoints

  • Security


    Strongest-possible security protection using SRTP, TLS and HTTPS encryption

  • Network


    Gigabit network ports with integrated PoE+; Integrated NAT router

  • Support


    Supports up to a 5-level IVR (Interactive Voice Response)

  • Recording


    Built-in call recording server; recordings accessed via web user interface

  • Call Queue

    Call Queue

    Supports call queue for efficient call volume management

  • Tracking


    Built-in Call Detail Records (CDR) for tracking phone usage by line, date, etc.

  • Auto Attendant

    Auto Attendant

    Multi-language auto-attendant to efficiently handle incoming calls

  • Phonebook


    Integrated LDAP and XML phonebooks, flexible dial plan

  • SIP Video Endpoint

    SIP Video Endpoint

    Supports any SIP video endpoint that using the H.264, H.263 and H.263+ codecs

  • Voicemail


    Supports voicemail and fax forwarding to email

Technical Specification

Call Features
Call park, call forward, call transfer, DND, DISA, ring group, pickup group, blacklist, paging/intercom etc.
Maximum Call Capacity
Up to 2000 registered SIP endpoints, up to 200 concurrent calls
Conference Bridges
Up to 8 bridges, up to 64 simultaneous conference attendees
Polarity Reversal/Wink
Yes, with enable/disable option upon call establishment and termination
Call Center
Multiple configurable call queues, automatic call distribution (ACD) based on agent skills/availability/
work-load, in-queue announcement
Multi-Language Support
English/Simplified Chinese/Traditional Chinese/Spanish/French/Portuguese/German/Russian/Italian/
Polish/Czech for Web UI
Rack mount & Desktop
Voice-over-Packet Capabilities
LEC with NLP Packetized Voice Protocol Unit, 128ms-tail-length carrier grade Line Echo Cancellation,Dynamic Jitter Buffer, Modem detection & auto-switch to G.711