VoIP Design Overhaul and SIP to SIM Calling

Job ID: 38868251

Budget: $10 – $30 USD

I'm looking for an expert in VoIP system design and SIP protocol to assist with updating the layout of my VoIP interface and enabling call functionality from SIP to SIM card.

Key Requirements:
- Revise and improve the layout of the VoIP interface according to best practices and user-friendly principles.
- Implement functionality that allows calling from SIP to a SIM card.

Ideal Skills:
- Extensive experience with VoIP systems.
- Proficient in SIP protocol.
- Strong background in UI/UX design.
- Able to create intuitive and streamlined layouts.

Please note, I have not yet determined whether to keep any existing design elements or not, so flexibility and creativity will be key.
Related categories: Mobile App Development VoIP