Small Business VoIP

Webinar Recap: What are the differences between Grandstream SLA and SCA?


This week, Grandstream and VoIP Supply hosted another successful webinar to talk about SLA and SCA features. We received a lot of great questions during the webinar that we’d like to share with all of you who might have missed it!

Recap the webinar with our presentation slides here and Q&A session below.

What was covered in the webinar?

  • Shared Line Appearance (SLA) allows mapping the line key on the IP phone to the POTS lines
  • Shared Call Appearance (SCA) allows multiple phones to share the same extensions and services
  • Call Park
  • Live Demo
    • How to enable SCA
    • How to set up extensions
    • Call Parking
    • Analog Trunks

Grandstream Webinar Q&A Session

Q1: Does the SLA work with PRI?

A: Grandstream’s UCM PBX has a built-in PRI you can use. You can use SCA to monitor the lines. This method only works if each channel has a DID that is only directed to an extension. It’s pseudo monitoring, but there is no true trunk monitoring for PRI.

Q2: Can you have a private extension use SCA and not ring on incoming calls? For example you only want a few phones to ring on the lines but everyone else is able to pick up the line and dial out, or grab calls that are on hold?

A: If you don’t want it to ring, you just want to monitor, under “add private number”, you can disable the function. You can also uncheck ”allow origination from this” to block outgoing calls.

Q3: Call Park vs Monitored Call Park feature usage?

A: On your UCM, there’s no difference between these two. For GXP IP phones with a third-party PBX, we suggest using a monitored call park instead of call park.

Q4: If you change the VPK #1 from default does the phone continue to work? I thought VPK #1 always has to be default as the phone needs to know what account to dial and receive calls on.

A: It depends. VPK1 is typically tied to whatever the main account is. Avoid changing this. Please watch the recording for more details.

Ying-Hui Chen

Ying-Hui ( Evy), has been working at VoIP Supply since November 2015. She is currently working in the Marketing Department helping with market research, SEO analysis/ tracking, email marketing and blogs. Connect with her on LinkedIn.

Share
Published by
Ying-Hui Chen
Tags: IP PBX

Recent Posts

Did You Know: You Can Custom Design Your Ideal Meeting Space With New Tools?

You want to optimize your meeting space or conference room to ensure every remote or…

7 days ago

How to Create and Submit an RMA 2025

https://youtu.be/58HX8VIljrY?si=v4-BBtOhIiDujgch In the fast-paced world of Telecommunications, things can happen, and sometimes those things require…

2 weeks ago

How To: Maximize VoIP Phone Features for Better Team Communication

In an office setting, there will most likely be a professional business phone on your…

2 weeks ago

Watch Now: 2025 April VoIP News Update

https://youtu.be/WsVpLUdxYuQ?si=g7Arw3u20MWfKq8q We're back with more VoIP News for April 2025! In this month's episode, we'll…

3 weeks ago

How To: How to Expand Your VoIP System with Gateways and Adapters

Growing pains don’t only happen to people, they happen to businesses too! It’s fantastic that…

4 weeks ago

Did You Know: Your Network Infrastructure Has to be Ready for New or Upgraded IP Paging

When looking into new or upgraded IP paging equipment, many people don’t realize that you…

1 month ago