Snom PA1+ SIP Public Address and Announcement System

Extend a compatible SIP phone system with paging, announcements or background music. The PA1+ combines a compact amplifier with network audio and configurable control connections. Use its speaker output for a suitable local speaker, or connect an external amplifier for a larger installation.

Key Features

• SIP paging with automatic call answering.
• Multicast paging support.
• Configurable SIP/DTMF control for connected equipment.
• Dual Gigabit network ports and PoE power.
• TLS and SRTP for supported secure deployments.

Specifications

• Amplifier: 6.5 W Class D, 8 Ω speaker load
• Line output: 600 Ω
• Network: 2 × Gigabit Ethernet RJ45
• Power: IEEE 802.3af Class 3 PoE, or optional 5 V DC / 2 A adapter
• IP versions: IPv4 and IPv6 dual stack
• Audio codecs: G.711, G.722, G.723.1, G.726, G.729 and Opus
• Mounting: Indoor wall or ceiling
• Dimensions: 165 × 104 × 35 mm; 175 mm long including connectors
• Weight: Approximately 400 g
• Operating temperature: 0–35°C

Compatibility and Setup

• Speaker and optional mains power supply are not included in the manufacturer's standard package. Use an 8 Ω speaker on the amplified output; the 600 Ω connection is the line output for external equipment. PBX compatibility and relay wiring must be checked before installation.

Manufacturer Information

• Snom PA1+ official product page
• Snom PA1+ technical specification, revision 3, 17 September 2026