# OpenScape WLAN Phone WL4 — Wi-Fi SIP Handset

URL: https://www.promark.tr/en/products/wl4
Category: Endpoints
Family: [OpenScape WLAN Phone WL4 — Wi-Fi SIP Phone & WSG](https://www.promark.tr/en/products/openscape-wl4)

Not DECT — an enterprise wireless handset running SIP over the existing WLAN (Wi-Fi) infrastructure. 802.11 a/b/g/n/ac (2.4 + 5 GHz), IP44 housing, SRTP/TLS encrypted voice. No separate base station; registers to the PBX through access points. Messaging via optional licence.

## Key features

- IEEE 802.11 a/b/g/n/ac — 2.4 GHz and 5 GHz.
- WLAN security: WPA2-PSK, PEAP-MSCHAPv2, EAP-TLS, AES-CCMP (802.11i/w); fast roaming 802.11r/k, PMKSA caching, CCKM.
- Protocols: SIP/RTP, SRTP/TLS (encrypted voice), DHCP, DNS, SNMP.
- Codecs: Opus Wideband, G.711 A/μ-law, G.729, G.722.
- 2" TFT 240×320 colour display; IP44 housing; 137×52×21 mm, 135 g.
- Li-polymer 3.7V 920 mAh battery; 3.5 mm headset; HAC; vibration.
- 4 network profiles (auto/manual).
- Messaging via optional licence (with WSG).
- Promark: WLAN site survey, QoS/roaming design, commissioning.

## Specifications

- **Type:** WLAN (Wi-Fi) SIP handset — NOT DECT
- **Network:** IEEE 802.11 a/b/g/n/ac (2.4 + 5 GHz)
- **Security:** WPA2-PSK, PEAP-MSCHAPv2, EAP-TLS, AES-CCMP, 802.11r/k
- **Voice:** SIP/RTP, SRTP/TLS; Opus, G.711, G.729, G.722
- **Display:** 2" TFT, 240×320
- **Protection:** IP44
- **Size · Weight:** 137×52×21 mm · 135 g
- **Battery:** Li-polymer 3.7V 920 mAh
- **Messaging:** Optional licence
- **Mitel PN:** 50009169
- **Unify L No:** L30250-F600-C327

## Use cases

- Mobility without DECT infrastructure on campuses with existing Wi-Fi.
- SIP endpoint on retail and manufacturing floors.

## For a quote and BOM

https://www.promark.tr/en/contact · +90 312 544 09 15 · destek@promark.tr