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Avaya J129 IP desk phone in dark grey with monochrome display and handset

Avaya

Avaya J129 IP Phone (700512392) VoIP

SKU CH-3X0M-RNWD3

A SIP desk phone with a 128 x 32 monochrome display, dual 10/100 ports, PoE power and wide codec support including OPUS and G.722

  • Rated speed10/100
  • Supported protocolsOPUS Codec, G.711a/u, G.722, G.726A, G.729, G.729A, G.729AB
  • Product typeWired VoIP
  • Single-line simplicity for focused desk use
  • 128 x 32 pixel monochrome display for clear call data
  • Dual 10/100 Ethernet ports connect phone and PC
  • PoE 802.3 af power removes need for separate adapter
  • Wide codec support including OPUS, G.711, G.722, G.729 for flexible voice quality

Single-line SIP phone for small offices

The Avaya J129 is a single-line SIP phone built for small-office VoIP deployments. It runs on Power over Ethernet 802.3 af and includes dual 10/100 ports so a co-located PC can share the network drop. The handset offers a built-in volume boost for hearing-impaired compatibility.

Plug into PoE and configure the SIP server

Connect the phone to a PoE-enabled switch or use an optional 802.3 af injector if the switch does not supply power. The 128 x 32 pixel monochrome display and three context-sensitive soft keys guide basic provisioning. A common issue is forgetting to enable OPUS, G.711, G.722, G.726A or G.729 codecs on the server side, which causes one-way audio.

Verify PBX compatibility and network infrastructure

Ensure the PBX runs Avaya Aura, IP Office 10.0 SP2 or higher, Broadsoft Broadworks R21SP1 or Zang Office R 1.0 for native feature support. The link speed is limited to 10/100, so Gigabit-only cabling plans will not improve throughput. Buyers who need multiple line appearances or colour displays should consider other models.

How it compares

Measured against everything we stock in IP Phones & VoIP Handsets, at today’s prices. Recalculated every night.

Price $28.99
Cheaper than about 92% of the 495 comparable items (median $138.99).

Specifications

Product
Brand nameAvaya
Model nameJ129
Product typeWired VoIP
Performance
Rated speed10/100
Connectivity
Supported protocolsOPUS Codec, G.711a/u, G.722, G.726A, G.729, G.729A, G.729AB

Questions about this item

How can I confirm the Avaya J129 IP Phone is working after connecting it to the network?

The 128 x 32 pixel monochrome display will light up and show the line status, while the handset provides dial tone; you can also place a test call to verify the OPUS Codec and G.711a/u audio paths are active.

What comes with the Avaya J129 IP Phone and what must I purchase separately?

The box contains the phone unit, handset and coiled cord; a PoE injector is not included and must be bought separately if your network switch does not supply Power over Ethernet 802.3 af.

Which SIP platform version should I select for the Avaya J129 IP Phone in my environment?

Choose Avaya Aura for AST-SIP enhanced features, Avaya IP Office 10.0 SP2 or higher for native support, Broadsoft Broadworks R21SP1, or Zang Office R 1.0 depending on your call server.

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