User Manual
Table Of Contents
- Chapter 1 Introduction
- Chapter 2 Preparations & Installation
- Chapter 3 Network Service Configurations
- Chapter 4 VoIP Telephone Adapter Configurations
- Chapter 5 Netowrk
- Chapter 6 NAT Trans
- Chapter 7 SIP Setting
- Chapter 8 Advance Setting
- Chapter 9 Other Setting
- Appendix A Voice Communication Samples
- Case 1: ATA to ATA connection via IP address
- Case 2: (Peer-to-Peer mode) VIP-157S Port 1 to Port 2 communications
- Case 3: Call Forward Feature_Example 1
- Case 4: Call Forward Feature_Example 2
- Case 5: Call Forward Feature_Example 3
- Case 6: Call Forward Feature_Example 4
- Case 7: Auto Answer Feature_IP to PSTN
- Case 8: Auto Answer Feature_PSTN to IP
- Appendix B The method of operation guide
- Appendix C VIP-156/VIP-156PE/VIP-157/VIP-157S Specifications

[Alarm Type]
This page defines the Alarm setting in this page. It provides the alarm function, and it can set up the
Alarm Time to get the telephone ringed up every day.
Alarm Type: The default is Off. If set up as On, the telephone will ringed up at the specific time.
Alarm Time: It can set up the system prompt time with 24 hours.
Alarm Line: select the Line for alarm.(only for VIP-157S)
26BSNTP settings
This page defines the primary and second SNTP Server IP Address, to get the date/time information.
Also you can base on your location to set the Time Zone, and how long need to synchronize again.
User can also use the “daylight saving” to adjust the daylight time. When you finished the setting,
please click the Submit button.
27BVolume Setting
This page defines the Handset Volume, Ringer Volume, and the Handset Gain. When you finished the
setting, please click the Submit button.
Handset Volume is to set the volume for you can hear from the handset.
Handset Gain is to set the volume send out to the other side’s handset.
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