VoIP phone - SIP, SIP v2
| Main Specifications | |
|---|---|
| Product Description | Yealink Skype for Business HD IP Phone T42S - VoIP phone |
| Product Type | VoIP phone |
| VoIP Services | Skype |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP Protocols | SIP, SIP v2 |
| Voice Codecs | G.722, G.723, G.729ab, G.711u, G.711a, G.726, iLBC, GSM, SILK |
| Speakerphone | Yes |
| Call Services | Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
| Display | LCD display - monochrome - Yes |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| General | |
| Product Type | VoIP phone |
| Miscellaneous | |
| Connections | Headset jack / RJ-9 ¦ USB / 4 pin USB Type A |
| Hearing Aid Compatible | Yes |
| Placing / Mounting | Wall-mountable, table-top |
| Cables Included | Network cable - 6.6 ft |
| Display | |
| Type | LCD display - monochrome |
| Display Location | Base |
| Diagonal Size | 2.7" |
| Display Resolution | 192 x 64 pixels |
| Backlit | Yes |
| Phone Features | |
| VoIP Services | Skype |
| Call Services | Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability |
| Dialer Location | Base |
| Conference Call Capability | Yes |
| Speakerphone | Yes |
| Indicators | Visual ringer light, voice message waiting indicator, speakerphone indicator, headset, mute indicator |
| Dimensions & Weight (Base) | |
| Width | 8.3 in |
| Depth | 7.4 in |
| Height | 6.9 in |
| IP Telephony | |
| Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
| VoIP | Yes |
| VoIP Protocols | SIP, SIP v2 |
| Voice Codecs | G.722, G.723, G.729ab, G.711u, G.711a, G.726, iLBC, GSM, SILK |
| Quality of Service | IEEE 802.1Q (VLAN), Differentiated Services (DiffServ), IEEE 802.1p, Type of Service (ToS) |
| IP Address Assignment | DHCP, static |
| Security | EAP-MD5, IEEE 802.1X, TLS |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | TCP, UDP, HTTP, DNS, HTTPS, SRTP, SNTP |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Voice Features | Comfort noise generation (CNG), voice activity detection (VAD), HD Voice, acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC) |
| Network Features | Class 2 PoE |