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

1. If the dialing number is “002+86xxxx”, it will ma tch the rule [002], then system will
automatically replace the prefix [002] to the p refix number [006].The real dialing number is
[006+8613xxxxx].
2. If the dialing number is “003+77xxxx”, it will ma tch the rule [003], then system will
automatically replace the prefix [003] to the prefix n umber [006]. The re al dialing number is
[006+77xxxx].
Example_3: Drop prefix: Disable, Prefix: 009, Rule: 12
1. If the dialing number is “12xxxxx”, it will match the rule [12], then system will automatically
add the prefix [009] in front of [12].The real dialing number is [009+12xxxxx].
Example_4: Drop prefix: Disable, Prefix: 009, Rule: 53+35xx+21xx
1. If the dialing number prefix is [53789], it will match the rule [53], then system will automatically
add the prefix [007] in front of [53789].The real dialing number is [007+53789].
2. If the dialing number prefix is [3507], it will match the rule [ 35xx], then system will
automatically add the prefix [007] in front of [3507].The real dialing number is [007+3507].
3. If the dialing number prefix is [2199], it will match the rule [ 21xx], then system will
automatically add the prefix [007] in front of [2199].The real dialing number is [007+2199].
Example_5: Dial Now: *xx+#xx+11x+xxxxxx
1. If the dialing number is match with the rule of “*xx”, it will send out the dialing number directly.
For example, *00/ *01/ *02…*99.
2. If the dialing number is match with the rule of “#xx”, it will send out the dialing number directly.
For example, #00/ #01/ #02…#99.
3. If the dialing number is match with the rule of “11x”, it will send out the dialing number directly.
For example, 111/ 112/ 113…119.
4. If the dialing number is m atch with the rule of 8 di gits, it will send out the dialing num ber
directly. For example, 12345678.
[For VIP-157 only]
28
Field
Description
Auto PSTN backup
Deafult is Disable, it’s for PSTN backup function, when it “Enable”, if
SIP regsiter un-successful it will automatically switch to PSTN line to
dial out.
LNote: To enable this function, make sure that the PSTN line is
connected to the PSTN port already.
PSTN feature Code
Deafult is 0*, the code for
UmanuallyU switch to PSTN line, and dial out
from PSTN, it can only accept the numeric and *or #, the digital max
length is 7.