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be.IP 4isdn

Media Gateway for flexible All-IP Migration

  • 4x ISDN (P2P and PMP)
  • Double Play with second be.IP 4isdn for 8x ISDN
  • 8 parallel fax channels for CAPI to ISDN
  • 6 parallel fax channels for CAPI to SIP
  • Session Border Controller for SIP to SIP Gateway
  • No change of PABX necessary
  • Vendor-independent use

be.IP 4isdn

The be.IP 4isdn ensures an easy transition to the IP technology. The compact Media Gateway with integrated business router allows the re-use of existing ISDN PBX, Internet access, and WLAN management.

Product description

The fast and simple setup of the be.IP 4isdn allows a seamless migration from ISDN to ALL IP. The media gateway function guarantees the further operation of the already existing PBX including all its telephones. Thanks to the 4 ISDN interfaces, the be.IP 4isdn is especially suitable for locations with several ISDN point-to-point and multipoint connections while the already operating PBX can use the new SIP trunk connection. The integrated session border controller allows IP PBXs, which are non-compatible to ALL-IP, to use ALL-IP connections. Customers who want to continue to use their sever-based ISDN applications, which are already integrated in company processes, can do this via LANCAPI (CAPI to ISDN). Furthermore, the fax gateway mode enables CAPI applications directly at the SIP connection (CAPI to SIP). PBX systems with up to 8 ISDN connections can be migrated by synchronizing two be.IP 4isdn systems. Furthermore, the be.IP 4isdn provides a secure and robust internet access with up to 100 Mbit/s download.

Business Router


  • Internet access via integrated VDSL2 /ADSL2+ modem
  • Easy installation of powerful gigabit LAN
  • Secure connection to company network from home or on the road via smartphone
  • Several Internet connections supported with additional external IPv4 / IPv6 modems and VoIP loadbalancing
  • 5 VPN tunnels for secure remote access (extendable to up to 30 tunnels)
  • Integrated WLAN Controller for managing wireless LAN infrastructures (optional)

Media Gateway Mode


  • No change of PBX necessary
  • Up to 8 external calls parallel, using existing ISDN PBX
  • Double Play Function: Connecting two be.IP 4isdn for supporting 8 ISDN connections
  • 8 parallel fax channels (CAPI to ISDN) in MGW mode
  • Powerful Session Border Controller for using non-compatible IP PBXs at ALL-IP connections
  • VoIP routing across multiple Internet connections
  • Vendor-independent use

Fax Gateway Mode


  • parallel fax channels (CAPI to SIP) in fax gateway mode

VDSL2 nach ITU G993.2, G993.5 vectoring, ADSL2+ / ADSL2 / ADSL (compatibl to U-R2 & 1TR112 Deutschen Telekom), Annex B / J, G.Lite (ITU G.922.2), Vectoring support, VDSL Up- and Downstream up to 100 MBit/s
4x 10/100/1000 Mbps Ethernet Twisted Pair, autosensing, Auto MDI/MDI-X, up to 3 ports can be switches as additional WAN ports incl. load balancing, all Ethernet ports can be configured as LAN or WAN.
Ethernet WAN / DMZ
1x 10/100/1000 Mbps Ethernet Twisted Pair, autosensing, Auto MDI/MDI-X, up to 4 ports can be switches as additional WAN ports incl. load balancing, all Ethernet ports can be configured as LAN or WAN.
ISDN S0 ports
4x BRI ports for internal operation, optional via ISDN TE-Adapter also for external use: internal for connecting S0 standard or system telephones, (external: PtP, PtMP) / PABX in MGW mode
CAPI 2.0 with CAPI user concept (password requested for CAPI use). Available from Release 10.1.7
Synchronization interface
The synchronization interface enables cascading of two be.IP 4isdn to migrate telephone systems with up to 8 ISDN channels.
Serial console
Serial console interface / COM-Port (Mini-USB)
Plastic housing, white with red frame
327 x 193 x 44 mm (B x H x T)
Protection Class
Power Supply
External power supply, Input: 100V - 240V AC, with high efficient switching power supply; follows EuP Directive 2008/28/EC
Wall mounting, Destkop, 19" -Rack
Wall mounting integrated in housing, Desktop, 19"-brackets (included in scope of delivery)
Power consumption
Idle: 14 W, maximum: 29 W
Fanless design therefor high MTBF
9 LEDs to display the operational states: Power, Status, Service, DSL, Phone, BRI1, BRI2, BRI3, BRI4
Reset Taster / Factory Settings
Restart or reset to factory state possible
Function Button
Additional Trigger-Element for the Event Scheduler
Realtime clock
System time persists even at power failure for some hours.
Standards and certifications
R&TTE Directive 1999/5/EC (EN 55022; EN 555024); Low Voltage Directive 2006/95/EC (EN60950-1); Ecodesign/ERP Directive 2009/125/E
Environmental conditions
Desk, wall or rack mountable, operating temperature: : +5° C to +40° C, Stocking: -20°C to +70°C, air humidity: max. 85 % non condensing, dry and dust free rooms
SIP providers (VoIP)
Max. 25 SIP providers
External SIP channels
No restrictions
VPN / IPSec Tunnel
Max. 30 (5 tunnels are already included ex factory)
WLAN Controller
max. 12 Accesspoints (optional)
Media interfaces (TDM / IP)
8 DSP channels (G.711) from which 8 DSP are with compression (G.729, G.726)
ISDN PBX connected to SIP exchange line
Up to 4 ISDN ports (point-to-point or multipoint connections) of ISDN PBX systems can be connected to a SIP exchange line, allowing also mixed operation mode. SIP exchange line can operate in both operation modes, single registration and SIP trunk DDI.
Protocol interworking
SIP clients can be registered by UDP, TCP or TLS independently from the type of SIP registration at the exchange line (TCP/TLS) or can be statically connected.
The gateway’s fixed assignment of SIP registrations to interfaces enables registrations via different Internet connections independently from routing. These registrations are provided for the PBX which is registered at the gateway.
IP PBX on ISDN provider
IP PBX systems in the LAN or from the cloud can be connected to the local ISDN exchange line.
ISDN and analog terminals can be connected to SIP PBX systems and SIP cloud solutions via SIP as SIP terminals. (ISDN and analog terminal adapter).
SIP Proxy (SBC Modus)
SIP terminals and SIP PBX systems can be registered at the gateway. The gateway is registered at the SIP exchange line. The SIP protocol is registered at the gateway.
SIP Clear Channel
Support of RFC 4040 – SIP Clear Channel for remote maintenance of ISDN TK Systems via ALL-IP
Fax transmission
8 channels can be simultaneous converted from LAN fax T.38 to T.30, ISDN an analogue. No matter how high the system load, for each channel is supported by a DSP.
SIP registrar
SIP users are able to sign on at the media gateway with registration and authentication.
Number of simultaneous VoIP connections
No software limitation
SIP proxy
Mapping of an unlimited number of SIP single or DDI provider accounts to SIP single user or to VoIP PABXs.
Calling number transformation
Conversion list of calling numbers; in this list are correlated external and internal numbers.
SIP link
Switching of incoming and outgoing calls like SIP trunks, though without DDI, but with single calling number blocks, with or without registerin
SIP user
No software limitation
ISDN SIP gateway
Transparent conversion of ISDN PABX connections to single SIP provider, or to DDI SIP trunk access
CLID conversion
Manipulation of calling party numbers in incoming calls; add a prefix to incoming numbers, to route corresponding calls via a certain SIP account.
Call router
Flexible switching of all calls according rules; conditions for call forwarding (routing). List with rules or rule chains for manipulating the signalled target calling number
Backup routes
Unlimited number of backup routes for the automatic selection of outside lines
Backup routes
Fallback routes, if a connection could not be established via the prior route
Features hybrid connections
Echo cancellation according G.168, Comfort Noise Generation CNG
SIP 2.0
RFC 3261 conform. 2327, 2976, 3261, 3262, 3263, 3264, 3311, 3323, 3325, 3428, 3515, 3581, 3608, 3891, 3966, 4028, 3555, 2833, 1035, 2782, 2915, 2617, ...SIP Connect 1.1
SIP protocols
SIP properties
SIP secure (TLS), establish secure calls
Debug Trace
Record of all data streams via console and WEB Configuration. Trace format text and PCAP
DTMF Support
DTMF Inband and out of band RFC 2976 (SIP Info) and RFC 2833 (RTP Payload Type/outband) support.
Audio codec support
G.711, G.726 (32 kbps), G.729, G.722, HQ Audio for VoIP-VoIP connections G.722
Media protocols
Early Media Connect
Early Media Connect vconnectsaudio or data stream before call complete.
WLAN Access Control List (ACL)
MAC address filter for WLAN clients (Whitelist)
Stateful inspection firewall
Directional packet filtering with monitoring and interpretation of the respective status of the individual connections.
Policy-based NAT/PAT
Network and port address translation using different criteria such as IP protocols, source/destination IP address, source/destination port.
Symmetrical network and port address translation (NAT / PAT) with randomly generated ports including multi-NAT (1:1 translation of the entire network)
Packet filter
Filtering of IP packets based on various criteria such as IP protocols, source/destination IP address, source/destination port, TOS/DSCP, layer-2 priority can be individually configured for each interface
Password Admin
Administrator system access for the Web configuration
Access Control List (ACL)
MAC address filter for WLAN clients (white list) and dynamic and static blacklist. Black list function requires WLAN Controller
IEEE802.11i authentication and encryption
802.1x/EAP-MD5, 802.1x/EAP-TLS, 802.1x/EAP-TTLS, 802.1x/EAP-PEAP, key management, PSK/TKIP encryption, AES encryption, 802.1x/EAP
Inter Cell Repeating
Inter traffic blocking for public hot spot (PHS) applications for preventing of communication radio client to radio client in a single radio cell.
Network segments on layer2 possible. Per SSID one VLAN ID available. Static VLAN configuration according IEEE 802.1q; up to 256 VLANs supported.
VDSL2-Vectoring (ITU G.993.5) kompatible to VDSL2-Vectoring connections
VDSL2 (ITU G.993.2) compatible to VDSL2 connection of Deutsche Telekom
VDSL Profile
VDSL Profile 8a, 8b, 8c, 8d, 12a, 12b, 17a, 30a
Compatible to ADSL/ADSL2/ADSL2+, Annex B / J
ADSL1, ADSL2 or ADSL2+ with internal ADSL2+-Modem
Internet Protocol Security for establishing VPN connections
IPSec Algorithms
DES (64 Bit), 3DES (192 Bit), AES (128,192,256 Bit), CAST (128 Bit), Blowfish (128-448 Bit), Twofish (256 Bit); MD-5, SHA-1,SHA-2 (256,384,512), RipeMD160, Tiger192 Hashes
IPSec hardware acceleration
Integrated hardware acceleration for IPSec encryption algorithms DES, 3DES, AES
Number of VPN Tunnel
5 simultaneous VPN connections.
Authentication of IPSec connections at a RADIUS server. Additionally the IPSec peers, which were configured on a RADIUS server, can be loaded into the gateway (RADIUS dialout).
The possibility to operate Quality of Service (traffic shaping) inside of an IPSec tunnel
IPSec Dead Peer Detection (DPD)
Continuous control of IPSec connection
By activating of NAT on an IPSec connection it is possible, to implement several remote locations with identical local IP addess networks in different IP nets for the VPN connection
Support of NAT-Traversal (Nat-T) for the application at VPN lines with NAT
IKEv1 & IKEv2: IPSec key exchange via preshared keys or certificates
IPSec IKE Config Mode
IKE Config Mode server enables dynamic assignment of IP addresses from the address pool of the company. IKE Config Mode client enables the router, to get assigned dynamically an IP address.
IPSec IKE XAUTH (Client/Server)
Internet Key Exchange protocol Extended Authenticaion client for login to XAUTH server and XAUTH server for loging of XAUTH clients
IPSec IKE XAUTH (Client/Server)
Inclusive the forwarding to a RADIUS-OTP (One Time Password) server (supported OTP solutions see
Certificates (PKI)
Support of X.509 multi-level certificates compatible to Micrososft and Open SSL CA server; upload of PKCS#7/8/10/12 files via TFTP, HTTP, HTTP, LDAP, file upload and manual via GUI
Certificate Revocation Lists (CRL)
Support of remote CRLs on a server via LDAP or local CRLs
Certificates management via SCEP (Simple Certificate Enrollment Protocol)
IPSec Multi User
Enables the Dial-in of several IPSec clients via a single IPSec peer configuration entry
IPSec IPComp
IPSec IPComp data compression for higher data throughput via LZS
Support of Point to Point Protocol (PPP) for establishing of standard PPP connections, inclusive the Multilink extension MLPPP for the bundeling of several connections
Enables the easy routing of IP via ATM
Packet size controling
Adaption of PMTU or automatic packet size controling via fragmentation
PPPoE (client)
Point-to-Point Protocol over Ethernet for creating PPP connections over Ethernet/DSL (RFC2516).
DHCP client / server / proxy for simplified TCP/IP configuration
DNS client, DNS server, DNS relay and DNS proxy
DNS forwarding
Makes it possible to forward DNS queries from any specified domain for resolution by certain DNS servers.
Makes it possible to assign dynamic IP addresses through a dynamic DNS provider, for instance when setting up VPN connections.
IPv4/ IPv6 Dual Stack
Parallel mode IPv4/ IPv6 supported
DHCP Server and Client
Neighbor Discovery Protocol: Router Discovery, Prefix Discovery, Parameter Discovery, Address Resolution, Static configuration of neighbors, IPv6 Router AAdvertisment Option for DNS Configuration (trough ND)
Unique Local IPv6 Unicast Addresses
IPv6 Adressing
IPv6 Stateless address auto-configuration (SLAAC), Manual address configuration, General-prefix support for address configuraion (user and prefix delegation DHCPv6), Duplicate Address Detection
ICMPv6 (router & host)
Destination Unreachable, Packet too big, Time exceeded, Echo Request
Routing Protocols
Static Routes
Multicast for IPv6
Firewall via IPv6
IPSec for IPv6
Support of layer 2 bridging with the possibility of separation of network segment via the configuration of bridge groups
Proxy ARP
Enables the router to answer ARP requests for hosts, which are accessible via the router. That enables the remote clients to use an IP address from the local net.
Support of up to 256 VLAN (Virtual LAN) for segmentation of the network in independent virtual segments (workgroups)
VLAN Tagging
VLAN tagging on IP interfaces can be configured (Value range up to 4096 VLANs)
Multicast inside IPSec tunnel
Enables the transmission of multicast packets via an IPSec tunnel
Multicast IGMP
Support for Internet Group Management Protocol (IGMP V1, V2, V3) for simultaneous distribution of IP packets to multiple stations.
Multicast IGMP proxy
For simple forwarding of multicast packets to dedicated interfaces.
Policy-based routing
Advanced routing (policy-based routing) depending on various criteria such as IP protocols (layer 4), source/destination IP address, source/destination port, TOS/DSCP, source/destination interface and destination interface status.
Switch/Port Separation
Logical separation of ports at the Ethernet switch to connect a system behind a VDSL modem.
Load Balancing
Static and dynamic load balancing to several WAN connections on IP layer
Bandwidth on Demand: dynamic bandwidth to suit data traffic load
Bandwidth reservation
Dynamic bandwidth reservation, assigning guaranteed and maximum bandwidths
Priority queuing of packets using the DSCP/TOS field.
Layer2/3 tagging
Mapping 802.1p layer 2 priority information to layer 3 Diffserv attributes.
Policy-based traffic shaping
Dynamic bandwidth management using IP traffic shaping
TCP download rate control
Reserves bandwidth for TCP connections.
General configuration
The be.IP is configured using a Web browser to access the Configuration Interface. Supported browsers: Internet Explorer, vers. 7 or later, Firefox 2 or later, Safari, Chrome
SNMP browser
Integrated in Graphical User Interface
Web configuration
Configuration access is performed locally and remotely over IP: HTTP / HTTPS without a signed certificate.
Web configuration
Configuration access is performed locally and remotely over IP: HTTP / HTTPS without a signed certificate.
Telnet access
Telnet (console) login for access to diagnostics results, traces, etc.
DIME Manager support
The be.IP 4isdn can also be configured via the DIME Manager.
Device Discovery Function
Device discovery via SNMP Multicast (DIME Manager)
Remote maintenance over IP
Remote maintenance via HTTP/ HTTPS
Export and import configuration
Load and save the configuration; save encrypted configuration; Optionally runs automatically from the scheduler.
Firmware download
Via IP
Event scheduler
Controlling actions using both scheduling and event-driven criteria, for instance Reboot Device, Activate/Deactivate Interface, Trigger Software Update, and Configuration Backup.
Configuration Interface
Integrated web server for web-based configuration via HTTP or HTTPS (supporting self created certificates). This user interface is by most of bintec elmeg GmbH products identical.
Remote maintenance
Remote maintenance via HTTP, HTTPS
Software update
Software updates are free of charge; update via local files, HTTP, TFTP or via direct access to the bintec elmeg web server
Configuration export and import
Load and save configurations, encrypted; optional automatic control via scheduler
Configurable scheduler
Controlling actions using both scheduling and event-driven criteria, for instance Reboot Device, Activate/Deactivate Interface, Trigger Software Update, and Configuration Backup.
Management: Supported management systems
bintec WLAN Controller
Central check of access authorization at one or several RADIUS server, RADIUS (PPP, IPSec inclusive X-Auth and login authentication, WPA Enterprise WLAN 802.1x)
RADIUS dialout
On a RADIUS server configured PPP und IPSec connection can be loaded into the gateway (RADIUS dialout).
Automatic Time Settings
Time zone profiles are configurable. That enables an automatic change from summer to winter time.
Time synchronization
The device system time can be obtained from a SNTP server (up to 3 time server configurable). The obtained time can also be transmitted per SNTP to SNTP clients.
On The Fly configuration
No reboot after reconfiguration required
Interfaces Monitoring
Statistics on all physical and logical interfaces (ETH0, ETH1, ...), output over the Web-based configuration interface (http/https).
IPSec Monitoring
Display of IPSec tunnel and IPSec statistic; output via web-based configuration user interface (http/https)
IP Accounting
Detailed IP accounting, source, destination, port, interface and packet/bytes counter, transmission also via syslog protocol to syslog server
WLAN Monitoring
Display for each link: MAC address, IP address, TX packets, RX packets, signal strength for all receiver antennas, signal-to-noise ratio, data rate; output via web-based configuration user interface (http/https).
WLAN monitoring
Detailed display for radio, VSS, WDS links, bridge links, client links.
E-Mail alert
Automatic e-mail notification for specified actions or statuses.
External Systemlogging
Syslog, multiple syslog servers can each be configured with a separate syslog level.
There is the possibility that traces filed in PCAP format, so they can be read subsequently in various open source trace tools (eg. As Wireshark).
Debug Trace
Recording of all data streams via console and web configuration. Trace formats text and PCAP selectable.
SIP secure (TLS), establish secure calls (in preparation)
Number of paralell connectins
4 x BRI <-> SIP hybrid connections, independent of codec type
SIP properties
SIP 2.0
RFC 3261 conform. 2327, 2976, 3261, 3262, 3263, 3264, 3311, 3323, 3325, 3428, 3515, 3581, 3608, 3891, 3966, 4028, 3555, 2833, 1035, 2782, 2915, 2617, ...SIP Connect 1.1
Features hybrid connections
Echo cancellation according G.168, Comfort Noise Generation CNG
SIP protocols
UDP, TCP, TLS* (in preparation)
Media protocols
RTP, SRTP (in preparation)
NTP Client/Server
Automatic update of date/time from time server. Internal time server for connected IP terminals.
Connection to SIP provider
A connection to an SIP provider can be configured by using an individual telephone number or extension.
Connecting standard SIP terminal devices
Standard SIP telephony over the LAN Telephony over (WAN) SIP provider; general SIP and router settings: SIP RTP port, DSCP value (SIP packets), DSCP value (RTP packets)
Number of simultaneous SIP connections per provider
The number of simultaneous SIP connections to the provider can be configured. System side not limited
Offsite extensions
Offsite extensions can be set up with IP system telephones or SIP telephones.
Bandwidth management with support for multiple locations (1)
Locations can be set up in order to use the bandwidth management. A location is identified with the aid of its fixed IP address or DynDNS address, or by using the interface to which the device is connected.
Bandwidth management with support for multiple locations (2)
The available VoIP bandwidth (upstream and downstream) can then be set up for each location.
Codecs G.711, G.726, G.729, DTMF inband, DTMF outband, SIP INFO,
Codec for SIP providers, or IP terminals
Various codecs can be defined to influence voice quality and meet the specific requirements of individual providers. Codecs can be sorted according to various criteria and presented according to quality or bandwidth, for instance.
Early media connect
Early media connect connects voice or audio data (e.g.: announcements) before the call was accepted.
Quality of Service
DSCP header / ToS bits configurable
A STUN server is required to provide VoIP devices behind an active NAT with access to the internet. In such cases, the current, public IP address of the connection is determined and utilized to ensure a precise address is available from the outside.
Dialling end identifier/shortening via #
The time after which the system begins to dial externally; i.e. after dialling the last digit of a call number. The time can be shortened by entering #.
Singlecell/multicell via LAN
As DECToIP system used with existing Ethernet interfaces via SIP protocol
Ethernet cable LAN
1x Ethernet cable, (RJ45-RJ45), 3m, yellow
Ethernet cable WAN
1x Ethernet cable WAN (RJ45-RJ45), 3m, blue
VDSL cable
1x VDSL cable (TAE-F-RJ45), gray
ISDN / BRI cable
1 x BRI cable, 3m
19 " brackets
2x 19 " brackets + Mounting clamps and screws
Power Supply
1x External power supply, Input: 100V - 240V AC, with high efficient switching power supply; follows EuP Directive 2008/28/EC
Setup manual, safety instructions
Open Source
Dieses Produkt basiert auf Open-Source-Software, deren Nutzung Gegenstand gesonderter Lizenzbedingungen ist. Weitere Details finden Sie im Download-Bereich des Produktes. Durch Erwerb und Nutzung des Produktes akzeptieren Sie diese Lizenzbedingungen.

be.IP 4isdn Part number: 5510000425

ISDN TE-Adapter Part number: 5520000161

ISDN-Sync-cable Part number: 5500002103

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