Switch Yeastar P550 to Mobily

I’m running a Yeastar P550 that is currently registered to a Zain SIP trunk. I now need that same PBX re-provisioned for a cloud-based SIP provider—specifically Mobily.

Here is what I expect:
• Reconfigure the existing trunk settings so the P550 authenticates cleanly with Mobily’s cloud platform (SIP credentials, codecs, SIP ALG considerations, NAT, and any IP whitelisting Mobily requires).
• Update inbound and outbound call routes, DIDs, and failover rules so users experience zero noticeable downtime.
• Confirm that features such as voicemail-to-email, ring groups, IVR, and call recording continue to work after the cut-over.
• Run live test calls with me to validate audio quality and caller ID presentation on both local and remote networks.
• Provide a short hand-off note (or quick screen-share) summarizing any changes made so I can maintain the setup going forward.

Everything is accessible remotely. I’ll supply current Zain trunk credentials, Mobily account details, and VPN or port access to the Yeastar web GUI. If you have solid Yeastar P-Series and SIP trunking experience, let’s get this migration done smoothly and quickly.