Smartphone Client UNIVERGE ST500

Smart mobile voice and video extension for your smartphone

Take the power of the ST500 with you at work, at home and anywhere in-between while not being tied to your desk

NEC’s UNIVERGE ST500 is developed for Apple iPhone, iPad and Android smart devices lets you leverage native contact lists to make and receive voice and video calls. Simply connect to Wi-Fi or use your mobile data (3G/4G) to handle your calls.

Smart mobile extension for your smartphone.

The ST500 softphone can save your business money by no longer having employees forward their desk phones to their mobile devices. Staff will also be able to make free internal calls and cheap local calls from the mobile client instead of all calls going directly through their mobile phone. By giving only your desk phone number (not your mobile number), you'll always be contactable and only have a single call history and work voicemail to check. The ST500 simplifies your communications.

UNIVERGE ST500 Features

  • One number and voicemail for hassle-free connectivity and accessibility
  • Worker caller ID via cell phone number to ensure consistent and recognizable identification
  • Simultaneous ringing of desktop and smartphone client for maximum coverage
  • Improving collaboration with smartphone video conferencing
  • Greater transparency with a call history.
  • Compatibility with Android and Apple.

Tech Details

Smart Phone OS iOS 11.0.3+ or Android 4.0.3+
Communications Platform SL2100 R1 or later
SV9100 R7 or later
SV9300 V5 or later
SV9500 V5 or later
Connectivity Standard SIP
Voice Codecs OPUS, G.722.1, G.711, G.722, G.729a
Video Codec H.264 / AVC

Connected Availability

NEC's UNIVERGE ST500 smartphone client brings greater dexterity and control to call management by making an employee's Android™ or Apple® smartphone the point of contact.

Capable of transitioning between the company network and Wi-Fi as needed, the UNIVERGE ST500 promotes the workforce's confidence that important calls will not be missed when out of the office or away from a workstation. assigned job. With the UNIVERGE ST500, phone and video conference calls can be easily made and received via an Android or Apple smartphone, and without it being obvious that a call is being handled off-site.

UNIVERGE ST500 offers:

  • One number and voicemail for hassle-free connectivity and accessibility.
  • Caller ID worker via cell phone number to ensure consistent and recognizable identification.
  • Simultaneous desktop and smartphone client ringing for maximum coverage.
  • Improved collaboration with smartphone video conferencing.
  • Greater transparency with a call history.
  • Compatibility with Android and Apple.

Continuous Availability

The UNIVERGE ST500 has the ability to positively impact production and improve the specific coordination of those employees whose work requires them to be on the move by ensuring that they can be contacted, such as:


Hospitality Service


Health Professionals


Warehouse staff

A cost saver

Being able to transition between your company network and Wi-Fi as needed also means you can bypass a cellular network when you're in the office and Wi-Fi can be used when working from home, in a remote office or from a mobile hotspot, avoiding the use of phone minutes or possible excess usage charges.