VoIP phone with caller ID - 3-way call capability - SIP v2, RTP - 4 lines
| Main Specifications | |
|---|---|
| Product Description | Digium A25 - VoIP phone with caller ID - 3-way call capability |
| Product Type | VoIP phone with caller ID |
| Main Features | Integrated Ethernet switch |
| VoIP Protocols | SIP v2, RTP |
| Voice Codecs | G.711, G.722, G.729a, G.726, iLBC, Opus |
| Lines Supported | 4 lines |
| Speakerphone | Yes |
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold |
| Display | LCD display - color - Yes |
| Display (2nd) | LCD display - color - Yes |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Manufacturer Warranty | 1-year warranty |
| General | |
| Product Type | VoIP phone |
| Shipping Weight | 2.29 lbs |
| Manufacturer Warranty | |
| Service & Support | Limited warranty - 1 year |
| Miscellaneous | |
| Connections | 2 x handset jack / RJ-9 ¦ Electronic hook switch (EHS) |
| Hearing Aid Compatible | Yes |
| Display | |
| Type | LCD display - color |
| Display Location | Base |
| Diagonal Size | 2.8" |
| Backlit | Yes |
| Phone Features | |
| Call Services | Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold |
| Caller ID Type | Caller ID |
| Dialer Location | Base |
| Conference Call Capability | 3-way |
| Speakerphone | Yes |
| Volume Control | Yes |
| Indicators | Voice message waiting indicator |
| Additional Functions | Call timer, Intercom |
| Dimensions & Weight (Shipping) | |
| Shipping Width | 10.6 in |
| Shipping Depth | 10.6 in |
| Shipping Height | 2.6 in |
| Shipping Weight | 2.29 lbs |
| Display (2nd) | |
| Type | LCD display |
| Color Support | Color |
| Display Location | Base |
| Backlit | Yes |
| IP Telephony | |
| Main Features | Integrated Ethernet switch |
| VoIP | Yes |
| VoIP Protocols | SIP v2, RTP |
| Voice Codecs | G.711, G.722, G.729a, G.726, iLBC, Opus |
| Lines Supported | 4 lines |
| Quality of Service | Diffserv per device (QoS) |
| IP Address Assignment | DHCP, static |
| Power Over Ethernet (PoE) Support | Yes |
| Network Protocols | TCP, UDP, Link Layer Discovery Protocol (LLDP), NTP |
| Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
| Voice Features | HD Voice, acoustic echo cancellation (AEC) |
| Network Features | Network Address Translation (NAT) |