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| Appendix A Product Specifications | |
| Table 137 | Firmware Features | |||
| FEATURE |
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| DESCRIPTION |
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| IP Multicast |
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| IP Multicast is used to send traffic to a specific group of computers. The |
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| ZyXEL Device supports versions 1 and 2 of IGMP (Internet Group |
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| Management Protocol) used to join multicast groups (see RFC 2236). |
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| IP Alias |
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| IP Alias allows you to subdivide a physical network into logical networks |
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| over the same Ethernet interface with the ZyXEL Device itself as the |
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| gateway for each subnet. |
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| Time and Date |
| Get the current time and date from an external server when you turn on |
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| your ZyXEL Device. You can also set the time manually. These dates |
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| and times are then used in logs. |
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| Logging and Tracing |
| Use packet tracing and logs for troubleshooting. You can send logs |
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| from the ZyXEL Device to an external UNIX syslog server. |
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| PPPoE |
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| PPPoE mimics a |
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| Universal Plug and Play |
| The ZyXEL Device can communicate with other UPnP enabled devices |
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| (UPnP) |
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| in a network. |
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| Table 138 | Feature Specifications | |||
| Voice Functions | SIP (RFC 3261) version 2 | |||
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| SDP (RFC 2327) | ||
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| RTP (RFC 1889) | ||
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| RTCP (RFC 1890) | ||
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| G.168 Echo Cancellation | ||
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| VAD (Voice Activity Detection) | ||
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| Silence Suppression | ||
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| CNG (Comfort Noise Generation) | ||
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| QoS Supports TOS and Diffserv Tagging | ||
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| Compression: G.711 (PCM), G.729 (ADPCM) | ||
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| Loop Start Signaling Support | ||
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| Modem and Fax Tone Detection and Pass Through | ||
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| DTMF Detection | ||
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| Point to Point Calling (Direct IP to IP Calling) | ||
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| Speed Dial Phonebook | ||
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| Lifeline Support | ||
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| Support NAT Traversal / RFC 3489- IETF Simple Traversal of UDP Through | ||
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| NAT (STUN) | ||
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| Caller ID | ||
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| Dialing Type: Tone, Pulse (Auto detection) | ||
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| Tip/ring polarity reversal | ||
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| VoIP Trunking | ||
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| DECT Base Station | DECT GAP profile support | |||
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| Up to 6 DECT GAP phones can be registered with the ZyXEL Device. | ||
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| 4 DECT GAP phones can be active at any one time. | ||
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| Range varies depending on your location and handset strength. | ||
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| DECT GAP phone and base station typically have a range of: | ||
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| 50 meters indoors and 250 meters outdoors | ||
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| 297 |
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