 EP-848R is an economical 4 ports gateway that developed for the domestic market. It can be used under H.323 or SIP without upgrade domestically. The 4 standard ports which was stick to the Chinese telecommunication standards enable it supports varied wire and wireless phones. The characteristics of this gateway are flexible setting, smart appearance, multiple functions, and perfect tone quality. It would be the best choice for phone bars, service providers and IP phone runners if it used with the calculation software which produced by Debole.
The technical parameters of EP-848R are as follows:
|
Characteristics of the hardware |
Parameter |
Remarks |
| Type |
EP-848R |
Can be customized |
| Processor |
ARM9 133MHz |
|
| DSP |
VP-101-1 196MHz |
|
| RAM |
16M |
|
| FLASH |
4M |
|
| Power |
24VAC / 1000mA |
|
| Consumption |
The maximum 20W |
|
| LED |
Operate, network , circuit |
|
| Network card |
100/10BASE-T ×1 |
|
| Weight |
400
grams |
|
| Working temperature |
0－45℃ |
|
| Working humidity |
40％－90％
not congealed |
|
| Color |
Blue |
|
| RJ11 port |
4 |
24V feed, 50V shaking bell |
| Characteristics of the voice |
Operating situation |
Remarks |
| G.168 echo dispelling algorithms |
Have |
16mS |
| g.723 |
Have |
|
| g.711A/u |
Have |
|
| g.729A/B |
Have |
|
| GSM |
Not have temporarily |
|
| PLC |
Have |
|
| CNG |
Have |
|
| VAD |
Have |
|
| Jitter buffer algorithm |
Have |
|
| Characteristics of the network |
Parameters |
Remarks |
| LAN port |
| DHCP |
Support |
|
| PPPoE |
Support |
|
| Static IP |
Support |
|
| Firewall traversal |
Relay or port transmitting |
Relay should cooperate with the Debole Relay server |
| Network time |
NTP / SNTP |
|
| 10/100BASE-T |
10、100
suits automatically |
|
| Protocols |
Parameters |
Explanation |
| H.323 |
| H.323 V4 |
ITU-T |
|
| H.450 |
Shielded |
Need the support of office |
| H.225 |
Support |
|
| H.245 |
Support |
|
| H.235 |
Support |
|
| RCF-1889 |
RTP/RTCP |
|
| IP to IP |
Support |
|
| SIP |
| RFC 3261 |
|
Session Initiation Protocol |
| RFC 2327 |
|
SDP: Session Description Protocol |
| RFC 3264 |
|
An Offer/Answer Model with the Session Description Protocol (SDP) |
| RFC 3265 |
|
Session Initiation Protocol (SIP)-Specific Event Notification |
| RFC 3515 |
|
The Session Initiation Protocol (SIP) Refer Method |
| RFC 2976 |
|
The SIP INFO Method |
| RFC 2833 |
|
|
| RFC 3489 |
|
|
| RFC 3842 |
|
A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP) |
| RFC 3891 |
|
The Session Initiation Protocol (SIP) "Replaces" Header |
| RFC 3892 |
|
The Session Initiation Protocol (SIP) Referred-By Mechanism |
| draft-ietf-sipping-cc-transfer-04 |
|
Session Initiation Protocol Call Control - Transfer |
|
