IP•Tube GE1 SS7-Signal

SS7 Over IP

- Exploits Efficiency and Flexibility of Packet Networks -

- Reduces Transport Costs -

- Facilitates New Revenue Opportunities -

Product Image


9" (L) x 7.3” (W) x 1.50” (H)


SS7 Signaling Circuit Extension Over IP

The IP•Tube GE1 SS7 SIG delivers SS7 signaling over cost effective IP networks without costly replacement of existing equipment. Benefits are realized immediately, simple installation emulates existing point to point circuits without reconfiguration of the MSC, STP or HLR. The IP•Tube GE1 SS7 SIG encapsulates the SS7 Message Signal Units (MSUs), Link Status Signal Units (LSSUs), and optionally Fill-In Signal Units (FISUs) into IP packets from the E1 interfaces of:

  • Telco Switches
  • Signal Transfer Points
  • Mobile Switching Centers
  • Home Location Registers

The IP•Tube GE1 SS7 SIG transparently transports SS7 messages over IP networks. SS7 signaling network elements such as local and tandem switches, Mobile Switching Centers, Signal Transfer Points and Home Location Registers that are interconnected to remote network elements by IP•Tube GE1 SS7 SIGs are able to transmit their signaling messages over cost effective and flexible IP networks.

IP•Tube GE1 Standard Features

Industry Standard SS7 Framer

The IP•Tube GE1 SS7 SIG uses an industry standard SS7 Framer to receive and transmit SS7 messages. Minimal IP bandwidth is required to deliver SS7 since only Message Signal Units (MSUs), Link Status Signal Units (LSSUs) SS7 frames are encapsulated into IP packets.

Assured Delivery Protocol

In order to assure high quality communications over links with intermittent or noisy performance, such as Wireless or Broadband over Power Line, the IP•Tube GE1 SS7 SIG employs Engage’s robust Assured Delivery Protocol with the following benefits: 

• Packet out of sequence detection and re-sequencing
• Duplicate skipping,
• Lost packet retransmission with configured delay.

Dual LAN Interfaces

All IP•Tube GE1 models ship with dual 10/100BaseT Ethernet LAN ports. The dual Ethernet interfaces provide for: 
• Management interface on LAN port 2 when LAN port 1 is connected to a VPN tunnel 
• The LAN ports can be configured to support connections over 2 opposite ADSL links 
• Alternator Option for load balanced SDSL interconnects 
• Protector Option for Redundant Packet Path connections with Constant or Switch Over Criteria 

Service Quality Packet Prioritizing

The IP•Tube GE1 uses the Type of Service byte in the IP packets and 802.1p/q mac level prioritization to prioritize the encapsulated SS7 Messages.

VPN Network Management

Interconnecting the IP•Tube GE1 through a Virtual Private Network with a sufficient real time committed information rate ensures that the required quality of service is provisioned. The IP•Tube GE1's second Ethernet interface provides a management port when the first Ethernet interface is connected to a VPN. Each Ethernet LAN interface features independent IP network configurations.

IP•Tube GE1 Optional Features

E1 Drop and Insert OPTION -D&I

The 2nd E1 Interface can be activated to provide a Drop and Insert interface for direct inline connection to the SS7 DS0 without requiring a DACs. 

E1 Mutiplexor OPTION -MUX

The IP•Tube GE1 SS7 SIG with the MUX option has the ability to support remote SS7 messaging taps from 31 SS7 timelsots.

Protector OPTION -PRO

The protector option utilizes the second LAN interface as a redundant path for the interconnection of the IP encapsulated E1 Circuit. The extension of the E1 circuit has a fault tolerant link that is configured to always on, or with switch over criteria.

Protector OPTION -EnPRO

The Enhanced version has configuration parameters that enable a secondary packet path with high relative delay to primary path be synchronized. The packet sequence delay synchronization ensures concurrent redundancy with a high degree of error tolerance. Error free operation is accomplished when a primary or secondary Packet is not received and a redundant duplicate packet is available. The IPTube also supports the transmission of multiple duplicate packets to support Mission Critical Circuit extension with redundancy that is only limited by the bandwidth provisioned. 

Pay-As-You-Grow Field Upgrades

The IP•Tube GE1 SS7 SIG has configurations with 1 to 4 integrated E1 interfaces each of which supports 1 to 31 SS7 Communication links. The IP•Tube GE1 SS7 SIG is designed for Pay-As-You-Grow expansion. Customers can elect to economize initial installation by purchasing a single active E1 port, and then enabling an additional SS7 DS0s or E1 ports via an option license key.

Rack Mount Kit

The IP•Tube family is ready for your most demanding central office or data center environments. With the Rack Mount Kit, IP•Tube products are easily installed in 19" and 23" racks. Easy access to both front and rear sides facilitates technician maintenance procedures.


Reduced Transport Costs

Carriers significantly reduce SS7 transport costs by replacing expensive long-haul dedicated signaling links with very competitively priced IP connectivity between network elements.

Long Haul SS7 Traffic via IP Networks

Low Cost IP Services, such as xDSL, have sufficient bandwidth to deliver the SS7 Over IP packets. SS7 Over IP network bandwidth utilization is limited to SS7 MSUs and LSSU.

Deployment Flexibility

Widely available commercial and private IP networks provides the SS7 network designer with competitive options for interconnecting the signaling points.

New Revenue Opportunities

Cost-effective IP transport technology and service-rich SS7 applications enables operators to quickly integrate enhanced services and capture new revenue.

SS7 (Signaling System 7) separates the information required to set up and manage telephone calls in the Public Switched Telephone Network (PSTN) onto a separate packet switched network (Signaling Network). It uses Message Signal Units (MSUs), Link Status Signal Units (LSSUs), and Fill-In Signal Units (FISUs) as signal units. The main protocols include MTP (Message Transfer Part – Level 1 to 3), SCCP (Signaling Connection Control Part), and ISUP (ISDN User Part).


LAN Network Interface
  • Two 10/100BaseT Full/Half Ethernet
  • Auto negotiation or Configurable Speed and Duplex 
LAN Network Protocols Supported
1 to 4 Duplicate Packet Transmission
  • Resilient performance through a lossy interconnect. 
E1/Fractional E1 Specifications
  • One to Four Port Models 
  • Connects directly to E1 or DS1
  • Framing - CRC4 or FAS
  • Coding - HDB3 or AMI
  • Supports DS0 assignments from 1 to 31
  • Non Contiguous Configuration x-y,z 
Supported E1 Over IP Protocol
  • SS7 Frame UDP encapsulation with Assured Delivery
  • Transmission Control Protocol (TCP) 
  • Network Tranparent - no point code required
  • Type of Service and Mac layer 802.1p/q QOS
TFTP Online Upgrade Capable (FLASH ROMs)
  • IPTube is fully operational during upgrade
Quality of Service Support
  • IP Type of Service (TOS) CLI configurable 
  • IANA Registered UDP Port 3175
  • 802.1p/q mac level prioritization
  • 9" (L) x 7.3" (W) x 1.50" (H) - 1/2 Rack Wide 1U High
  • Telnet support with Edit and Paste Templates
  • Console Port for Out of Band Management
  • SNMP support (MIB I, MIB II) with configurable traps
  • Remote configuration, monitoring, & reset
  • Telco Diagnostics: Local Loop, Remote Loop
  • Safety -IEC60950
  • EMC - CFR 47 Part 15 Sub Part B:2002 EN55022: 1994 + A1 & A2 EN55024, ICES-003 1997 CISPR 22 Level A
  • Telecom TBR12, TBR13
  • CE
Rear Panel/Power
  • 12-24 VAC/VDC, 1.0A. International Adapters Available
  • Optional -48V 0.25 Amp
  • Hot Standby with 2nd Power Module

Ordering Information

Rack Mount & Power Supply Options:

BlackGate RS232 Rear
BlackGate RS232 Rear

Part No.



IP•Express GE1 SS7 Signal, *Note: x = specificed number of enabled E1 ports (1 to 4)

Optional Features

Optional Features


ROHS compliant materials and processes, Restriction of Hazardous Substances no Pb


Alternator Load Balancing, Enable Alternator Load Balancing


Protector Option, Fault Tolerant Network Interconnect. The protector option utilizes the second LAN interface as a redundant path for the interconnection of the IP encapsulated data. The extension of the IP-Express has a fault tolerant link that is configured to always on, or with switch over criteria.  Learn more.

Power Supply Options

Power Supply Options


90-220 VAC Universal International/Domestic Adapter


DUAL REDUNDANT, 90-220 VAC Adapter


Internal Power Module, -48 VDC Screw Terminals


DUAL REDUNDANT, -48 VDC Screw Terminals


WIREDC Option, +24 VDC Screw Terminals



Rack Mount Options

Rack Mount Option


Rack Mount Kit - for single 7" products (Fits both 19" and 23" racks)


2 unit 19" x 1RU Rack Mount Kit for 7" products




Right Angle Wall Mount Bracket Kit

So What's Next?


Engage Communication
9565 Soquel Drive. Aptos, CA 95003
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Telephone: 1-831-688-1021
Toll Free : 1-877-ENGAGE4
Designed, Fabricated, and Assembled
in America 
Supported Worldwide