Contact person: Business Client

Phone:Show

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Location: Muscat, Oman

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I need a purpose-built module for Issabel that turns the PBX into a fully featured public-address engine. The add-on must let me trigger live or pre-recorded broadcasts to any SIP endpoint registered as a PA speaker, schedule automated messages, and issue one-click emergency alerts that can override all ongoing audio.

Beyond simple paging, I also want two-way talkback so selected devices can return audio to the control room. Audio quality matters; the module has to negotiate and play high-quality codecs such as Opus or G.722 whenever endpoints support them, while falling back gracefully to standard G.711.

A browser-based dashboard should give me at-a-glance status of every PA device—online/offline indication, current stream, volume level—and provide controls to group endpoints, launch announcements, manage schedules, and review a log of all events. The interface must fit naturally inside Issabel’s existing GUI framework and respect its user-permission model.

Deliverables
• Fully packaged Issabel module (source + installable RPM/TGZ)
• Web dashboard integrated into Issabel UI
• Asterisk dialplan logic and AGI/scripts enabling:
– Live broadcasting
– Scheduled messages with cron-style flexibility
– Priority emergency override
– Two-way communication sessions
• Support for Opus, G.722, G.711 µ/Α-law
• Documentation covering installation, configuration, and API hooks
• A brief video or live demo proving the features work on a clean Issabel build

I’ll supply test SIP speakers and remote access to a staging PBX. Code should be clean, commented, and released under GPL to match Issabel’s licensing." (client-provided description)