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 Home -> Products - > R5X Gigabit Series > Akuvox SP-R55G, Medium SIP-based Gigabit Business IP Phone

Akuvox SP-R55G, Medium SIP-based Gigabit Business IP Phone

SP-R55G is a mid-range business IP phone for front-line staff handling moderate volume of calls. The 

intuitive user interface enables easy navigation at minimal training. Its premium audio quality and rich telephony 

features combine to offer a cost-effective solution for enhancing workplace productivity. 


  • 3 SIP accounts

  • Dual gigabit Ethernet ports

  • HD voice

  • 2.3" graphical LCD display

Phone Features

  • Line: 3 SIP accounts

  • Call waiting, call forward, call transfer

  • Call on hold, mute, DND

  • Speed dial, hotline

  • Redial, auto redial, call return, auto-answer

  • Direct IP call

  • Dial plan

  • Hot desking

  • Local 3-way conferencing

  • Adjustable volume

  • Selectable ring tones

  • Country ringtone signal

  • Country ringtone signal

  • Daylight saving time

  • Network packet capture

  • XML browser

  • Action URL/URI

  • Keypad lock

  • Phonebook: 500 groups

  • Blacklist: 100 groups

  • Call log: 100 entries

  • Support 5 remote phone book URLs

  • LDAP

  • Multi-language support

IP-PBX Features

  • SMS, voicemail, MWI 

  • Music on hold, intercom

  • Busy lamp field

  • Call pickup, group call pickup

  • Call recording

  • Anonymous call, anonymous call rejection

Audio Features

  • HD voice

  • Wideband codec: G.722

  • Narrowband codec: PCMA, PCMU, G.729, G723_53, G723_63, G726_16, G726_24, G726_32, G726_40

  • Echo cancellation

  • Voice activity detection

  • Comfort noise generator

  • Full-duplex speakerphone

Network Features

  • SIP v1 (RFC2543), v2 (RFC3261)

  • IP configuration: static IP or DHCP

  • DTMF mode: In-Band, RFC2833, SIP INFO

  • HTTP/HTTPS web server for management

  • NTP for auto time setting

  • TFTP/FTP/HTTP/HTTPS protocols

  • 802.1Q VLAN

  • Support HTTPS (SSL)

  • Support SRTP for voice data encryption

  • Support login for administration

  • SIP over TLS

Administration Features

  • Auto provisioning: FTP/TFTP/HTTP/HTTPS/PnP

  • Dial through IP PBX using phone number

  • Dial through IP PBX using URL address 

  • Configuration management: web- or keypad-based management or auto provisioning

  • SNMP

  • TR069

Physical Features

  • Audiocodes chipset

  • Display: 2.3" 132x64 graphical LCD with backlight

  • Key: 34 keys, including 4 soft keys

  • LED light: 1 power light and 3 account lights

  • AC power adapter: input-AC 100-240V, output-DC 5V/1A

  • PoE IEEE802.3af

  • Gift box size: 202x239.5x102.5 mm

  • Weight: approx. 1.19 kg 

Interface Features

  • 1xRJ9 handset jack

  • 1xRJ9 headset jack

  • 2xRJ45 10/100/1000M Ethernet jacks 

  • 1xRJ12 expansion socket