Grandstream UCM6302 IP PBX 2 FXO 2 FXS

UCM6300 2 FXO / 2 FXS

The Grandstream UCM6302 is the smaller UCM6300-series on-premises IP PBX with two FXO analog trunks and two FXS analog stations. SIP extensions and SIP trunks run on the same appliance. Wave, IM, and meeting features follow the UCM6300 software set at a lower analog port count than UCM6304. Typical user and concurrent-call ratings are published by Grandstream for this SKU and are lower than the 6304. Use it when two PSTN lines and two analog devices are enough.

Additionally, two FXO ports still give PSTN failover beside SIP. Therefore a small office can keep emergency analog while moving staff to IP phones. However, two FXS ports will not retire a large analog fleet. Consequently, schedule analog handsets onto SIP or pick UCM6304 (4+4) instead. Do not confuse this SKU with UCM6302A audio-only variants if Grandstream lists them separately.

Key Features

• 2 FXO + 2 FXS
  Analog trunks and analog stations on one chassis with SIP.

• SIP trunks and extensions

  • Standard SIP endpoints.
  • ITSP SIP with FXO backup.

• UCM6300 applications
  Auto attendant, queues, voicemail, and Wave softphone support.

• Security options
  TLS/SRTP and fail2ban-style controls when configured.

• HA on the series
  High-availability pairing where firmware and licence allow.

Specifications

What’s in the Box

• UCM6302 appliance

• Power adapter

• Ethernet cable

• Documentation

Why Choose This Smaller IP PBX

• Two analog trunks keep PSTN on a small site.

• Two FXS ports cover fax or a door phone during SIP cutover.

• Same UCM6300 software family as the 6304.

• Lower analog count matches a 10–30 user office more closely than 4+4.

Additionally, lock the WAN GUI and use a VPN for remote admins. Therefore do not expose SIP 5060 to the internet. However, analog fax still needs T.38 or careful FXS gain. Consequently, test fax before decommissioning the old key system. Back up the dial-plan after the first stable week. If you already know you need four trunks, buy UCM6304 instead of stacking two 6302 units.

See IP PABX systems.