Interface
|
|
10/100 Base-T, RJ45 |
Voice, Fax, Modem |
|
G.711, G.723.1, G.726, G.727, G729 Annex A,B, Full Rate GSM6.10, Linear 16 bit 8 Khz coder |
|
G.168-2002 compliant, up to 64 ms |
Quality Enhancement
|
Voice Activity Detection (VAD)
Comfort Noise Generation (CNG)
Adaptive Jitter Buffer (up to 300ms)
Packet Loss Concealment (PLC)
|
|
Automatic detection and switching |
Fax over IP
|
T.38 compliant, Group 3 Fax Relay up to 14.4Kbps with automatic fallback |
Signaling |
|
SIP (RFC 3261) |
|
FXS Loop-start |
|
DTMF (TIA 464B), User defined and call progress tone |
|
Per RFC 3350, 3351, 2198 |
DTMF Relay
|
Per RFC 2833 |
RTP Encryption
|
128 bit AES, Authentication MMH-MAC, HMAC MD5, HMAC SHA1 |
Line Feature |
|
up to 5,500 meters at 24 AWG |
|
Telcordia (Bellcore), ETSI, NTT On hook & Off hook service (Type 1&2) |
|
Yes |
|
12/16Khz Sinusoidal bursts |
* รายละเอียดอาจมีการแก้ไขโดยไม่ต้องแจ้งให้ทราบล่วงหน้า *
|
|
|