Hello Sir,
Hope you are doing well.
I have over 10+ years of experience with VOIP based phone systems based on the FreeSwitch including PBX, FreePBX, FusionPBX, Softswitch, Linphone, Webrtc, Jisti, RTMP, video, and chat applications. And hands-on experience working with 3rd party API Integration.
I can help you to config Flexisip server with push notifications on any Softswitch.
I have gone through your requirements and I feel confident enough to work with you on the same.
Would it be possible for you to come over chat to discuss further?
Awaiting your positive response.
Thank you.
Arpit