`- Additional cordless SIP handset
- Up to 12 floors in-building penetration, 250,000 sq. ft. of facility coverage, 3,000 acres of property, open land coverage
- Base supports up to 4 concurrent calls (4 SIP or 3 SIP + 1 PSTN)
- Works with any IP-PBX that supports the standard SIP protocol
- Independent 2-way intercom
- "Push-to-Talk" (PTT) broadcast feature
- Proven durability with ruggedized design