Callbox EXP50 Expansion Module

Works with the IP560 Phones


The Callbox EXP50  with optional expansion module is an innovative Business Class-level Color IP Phone that features 3 Line keys, 3.5” TFT-LCD with 480*320 pixel. It supports up to 5-way conference. Callbox EXP50 is optimized for general office to help reduce eye strain.


$175.00Get Quote

Expansion Module – Callbox EXP50  Color Screen Phone

HD Backlit Display with 20 Programmable Dual Color LED Keys.

Scroll through two screens for a total of 40 Keys.

You can even place a person’s Color picture next to their name!


  • Call hold, Call park, pick up

  • Redial, Call Return, Forward, Call transfer

  • Caller ID display, DND, Conference

  • Speed dial, Voicemail, Message

  • BLF, Shared line, private hold, public hold  

  • Large 960×540 color graphic LCD

  • 20 programmbale Keys Each with a dual-color LED

  • Daisy-chain 6 modules for up to 240 DSS Keys

  • 2 control keys for fast switch pages

  • Rich features, each with different Icon

  • Wall mountable

All CallBox System Office Phones Have These Features:

SIPv2, SDP(RFC 2327), RTP(RFC 1889,1890), RTCP
RFC 2833 X-NSE Tone Events for SIP/RTP, AVT Tone
Events for SIP/RTP


HD wideband codec:
G.722. HD Codec, HD speaker, HD handset
Full-duplex speakerphone with AEC
G.711 µ-law/A-law, G.723.1, G.726, G.729A/B.
DTMF(In-Band, RFC2833, SIP Info)
Acoustic Echo Cancelation(AEC)
Acoustic Gain Control(AGC) Voice Activity Detection(VAD), Comfort Noise insertion
Layer 2(802.1Q, 802.1P) QoS
Layer 3 (ToS, DiffServ, MPLS) QoS
WAN Port: 10/100/1000 RJ-45 for Internet
LAN Port: 10/100/1000 RJ-45 for PC
Handset: 1 RJ9(4P4C)
Headset: 1 RJ9(4P4C)
CPU: 600M
Adapter output: 5V/1.2A
Adapter input: 100-240V
Power consumption: standby – 2.2W / working – 2.4W
Power over Ethernet(PoE): IEEE 802.3af (Optional)
Operation temperature: -10 ~ 50℃
Relative Humidity: 10 ~ 95%
HTTPS Server/Client
Transport Layer Security (TLS)
VLAN QoS (802.1pq)
2 to 6 VoIP Accounts
Menu-driven user interface, XML Idle Screen, Theme,
Screen Sleep
Call hold, Call waiting, Call forward, Call return,
Redial, Call transfer
Caller ID display, DND, Auto-answer, 5-Way Conference
Mute, Speed dial, SMS, Voicemail, Message Waiting
Indication (MWI) LED, Call history
Hot-desking, Tone scheme, Volume control
Ring tone selection/Import/Delete
Broad and Deep Interoperability
Soft keys programmable
Phonebook, Black list XML/LDAP phonebook
All General Office Phones

Need More Information on any products, please call us today at:  

Call 1-800-486-4554

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