WebRTC PaaS which supports both MCU / SFU and Android / iOS

I'm looking for a WebRTC / media server hosting service which supports:

SFU or MCU server
Android / iOS SDK (EDIT: Android is not mandatory)

I need both above because I have to implement an audio only (no video needed) conference app which can involve 20 participants in one conference session.

I'm contacting to Skylink https://skylink.io/ but I wonder if there are any alternatives.

Do you know any?

Solution

you have quite a few of them. 20 participants in am audio call is not that many. SFU/MCU is also not a big deal, the only concern is wether you need people to call in / call out.

Here is a short list. You might want to chaco location and existing clients. skylink.io might not be the most recommended option.

sinch
sightcall
apidaze
apizee
plivo
ooVoo
forge / xura
voximplant
respoke
tokbox
tropo
twilio
...