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

LNote: The starting number can’t be the “0”. For example, if the
number is “0xxxx”, because the starting number is “0”, so that the
system will ignore this dial plan.
You can see the Register Status in the Status page. If the item shows “Registered”, then your Phone
Adapter is registered to the ISP, you can make a phone call direcly.
If you have more than one SIP account, you can following the steps to register to the other ISP.
When you finished the setting, please click the Submit button.
40BCodec Setting
This page defines the Codec priority, RTP packet length, and VAD function in this page. You need to
follow the ISP suggestion to setup these items. When you finished the setting, please click the Submit
button. Also in page defines the Codec ID. Sometimes 2 VoIP devices with different Codec ID will
cause the interopability issue. If you are talking with others got some problems, you may ask the other
one what kind of Codec ID he use, and then you can change your Codec ID. When you finished the
setting, please click the Submit button.
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