NOTICE: We will continue processing orders as usual despite the COVID-19 situation until further notice.

VIP-157S 2 FXS Analog Telephone Adapter

VIP-157S 2 FXS Analog Telephone Adapter



The VIP-157S converts existing standard telephones into IP-based network communication.

  • Ports: 1 LAN, 1 PC, 2 FXS
  • Standard: SIP 2.0, SIP Outbound Proxy, STUN
  • Fax Support: T.38, G.711 Pass-Through
  • Power: 12V DC
  • Operating Temperature: 0 to 50°C
  • TAA Compliant

FXS Analog Telephone Adapter

2 FXS VoIP Adapter

The VIP-157S, an easy-to-use-and-install Analog Telephone Adapter, provides the same voice quality and reliability that users have come to expect from PLANET ATAs.

The VIP-157S is a 2-port Analog Telephone Adapter that features 2 FXS connections, so you can connect 2 analog phones, an analog phone and a fax machine, which allow you to use your existing analog phones or fax machines to make calls via the internet. The VIP-157S supports T.38 fax and works with most SIP-based internet service providers (ISPs). The VIP-157S is a great choice for voice service providers because it is completely customized auto-provisioning, auto-update. If you want to have the world’s leading VoIP service, you need to have the world’s leading VoIP device!

Cost-effective, easy-to-install and simple-to-use, the VIP-157S converts standard telephones to IP-based networks. The service providers and enterprises offer users traditional and enhanced telephony communication services via the existing broadband connection to the Internet or corporation network.

VIP-157S Analog Telephone Adapter

Professional Application

The VIP-157S includes two Ethernet interfaces for Internet (PPPoE, DHCP or Fixed IP), or office LAN connection. Besides the IPv6, VPN (PPTP and L2TP), VLAN and PLANET Easy Dynamic DNS features, the VIP-157S is an intelligent low-density Voice over IP (VoIP) gateway that enables carrier-class residential and business IP Telephony services to be delivered over broadband or high-speed Internet connections to two standard RJ11 telephones. The 10/100 LAN port allows internet connectivity to be extended to a second device eliminating the need for a second Ethernet drop.

Calls from your VIP-157S to any other device on any VIP-157S device anywhere in the world are always free! The VIP-157S allows you to use your analog devices with any SIP trucking provider. Simply plug the Analog Telephone Adapter into your broadband router and then plug your analog devices into the ATA. The VIP-157S can also connect to your broadband router and to another IP device such as PC. The 2-port RJ45 router has integrated QoS to ensure your voice traffic is prioritized above other types of traffic. It will support up to 5 VoIP services or SIP accounts.

When co-working with a SIP service provider, you can enjoy the value-added features such as message waiting indication (MWI), hotline, three-way conferencing, caller ID, call forward(always, busy and no answer), call waiting, Do Not Disturb (DND), dial plan and phone book. Using a VIP-157S with an analog phone as an IP PBX telephone system gives you a special feature at a consumer price; the VIP-157S can be seamlessly integrated into the telephony network built by our IP PBX system series. The VIP-157S and PLANET IP PBX System (IPX-330/IPX-2100/IPX-2200/IPX-2500) are the best combination of your office daily communications.

VIP-157S 5 SIP Lines


Compliant with IETFSIP 2.0

SIP service continues to gain popularity among businesses as the preferred protocol for enhancing communication across IP networks. The VIP-157S supports Session Initiation Protocol 2.0 (RFC 3261), STUN and Outbound Proxy for easy integration with general voice over IP system. The VIP-157S is able to broadly interoperate with equipment provided by VoIP infrastructure providers, thus enabling them to provide their customers with better voice over IP services.

Compliant with Standard SIP RFC 3261


Convenient Design Brings Quality Communication

Based on years of VoIP manufacturing experiences, PLANET VoIP total solutions are known as advanced implementation of standard-based telephony along with mass deployment capability.

The VIP-157S is the fastest deployment ready ATA with auto-provision at the lowest cost. The VIP-157S can be deployed directly to customers, redirecting automatically to your provisioning server or you can use the TR069 ITSP portal for target profiles. With the VIP-157S, enterprises are able to save the installation cost and extend their past investments in telephones, conference and speakerphones. The VIP-157S acts as the bridge between the traditional analog systems and IP network with an extremely affordable investment.

VIP-157S Auto Provision Sync



Free ground shipping on most online orders

Premium Support

Premium Support

Contact our in-house technical support team

Lifetime Warranty

Lifetime Warranty

Sign up for the Planetech PRO lifetime warranty on select industrial products.