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

6. The Phone Number 11112222 will ring up then it pick up the telephone and communication with
the VIP-156_C
60BCase 8: Auto Answer Feature_PSTN to IP
In this example, there are one VIP-157 and two VIP-156 and connect with Peer to Peer mode. The
VIP-157_A had set Auto Answer function for forwarding to arbitrary telephone. If there have incoming
PSTN calls and VIP-157_A doesn’t answer the incoming calls after specific time, the caller will hear
prompt sounds to input the password and then dial out an arbitrary IP telephone.
Machine configuration on the VIP-157:
STEP 1:
Please log in VIP-157_A via web browser, browse to the Phone Settings / General setting
menu and select the Auto Answer config menu. In the setting page, please enable the Auto
Answer and PIN Code Enabled function, and then the sample configuration screen is
shown below:
STEP 2:
Please log in VIP-157_A via web browser, browse to the Phone Book menu and select the
Speed Dial Settings config menu. In the setting page, please add a speed dial number for
dial to IP address 192.168.0.2 (VIP-156_B), and then the sample configuration screen is
shown below:
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