VVX 250 4-line Desktop Business IP Phone with dual 10/100/1000 Ethernet ports. PoE only. Ships without power supply. 3 year partner premier service is included for China. 1000030224
Afisaj
| Diagonala display | 2.8 inch |
| Rezolutie pixeli | 320 x 240 pixeli |
| Tip display | Color LCD |
Caracterisitici Fizice
| Culoare | Negru |
| Dimensiuni baza | 240 x 57 x 230 mm |
| Greutate baza | 890 g |
Conectivitate
| Porturi | 2x 10/100/1000 Base-TX 1x RJ-9 headset port |
| Power over Ethernet (PoE) Suport | Da |
General
| Alimentare | Detectare automată încorporată IEEE 802.3af Power over Ethernet (Clasa 2) 4,5 W (Max) Adaptor extern extern AC / DC (opțional) 5VDC @ 3A (15W) |
| Apel in asteptare | Da |
| Call Hold | Da |
| Caller ID | Da |
| Difuzor | Frecventa raspuns: 150 Hz - 7 kHz |
| Display | Da |
| Functii | Polycom HD Voice Polycom Acoustic Fence |
| Identificare a apelantului | Da |
| Linii | 4 |
| Protocoale | SIP, IETF SIP, SDP |
| Protocoale Retea | IPv4 and IPv6, TCP, UDP DNS-SRV, VLAN-CDP, DHCP VLAN discovery LLDP-MED for VLAN discovery, RTCP and RTP, VLAN, Layer 3 TOS and Diffserv/DSCP DHCP, SNTP |
| Securitate | 802.1X Authentication and EAPOL Media encryption via SRTP Fișiere de configurare criptate Suport pentru executabile software semnate Provizionare securizată HTTPS Suport pentru sintaxa URL |
| Tip | Telefon IP |
| Voice Codecs | G.711 (A-law and μ-law), G.729AB, G.722, G.722.1, iLBC |