Dialogic® Distributed Signaling Interface (DSI) supports a range of Diameter, Signaling System 7 (SS7) and SIGTRAN (SS7 over IP) capabilities to manage signaling traffic between an application and the core network.



Dialogic® DSI Diameter Stack enables user applications to interface directly to IMS and LTE networks, for the realization of high value services in areas such as Mobility, Charging and Location.

Dialogic® DSI SIGTRAN Stack and Dialogic® DSI SS7 Stack deliver numerous benefits including

– A versatile architecture allowing systems to scale as service volume grow.

– Portability of applications from TDM SS7 to Dialogic® DSI SIGTRAN Stack based implementations.

Diameter Stack

Product Description
Diameter Stack Dialogic® DSI Diameter Stack is a high performance, carrier ready software implementation of the Diameter protocol with support for a wide range of Diameter interfaces; Mobility – S6a, S6d, S13 and S13’Charging – Ro, RfLocation – SLh, SLg


Product Description

(Stream Control Transmission Protocol) IETF RFC2960, RFC3309


(MTP2 User Peer-to-Peer Adaptation Layer) IETF RFC 4165

M3UA (MTP3 User Adaptation Layer ASP and IPSP) IETF RFC 4666, RFC 3332

SUA (Signaling Connection Control Part User Adaptation) RFC 3868

SIGTRAN Monitor Delivers high-performance, high-density protocol monitoring that enables applications to interrogate SIGTRAN traffic between active signaling points and trigger intelligent actions. SIGTRAN Monitor, a software only application, joins Dialogic® Network Interface Boards that have circuit-switched network monitoring capabilities.

SS7 Stack

Product Description
SCCP (Signaling Connection Control Part class 0,1,2)  ITU-T recommendations Q.711-Q.714, Q.791 and ANSI T1.112

(Transaction Capabilities Application Part)  ITU-T Q.771-Q.774 and ANSI T1.114


(Intelligent Networking) ITU CS1, ETSI CS1 & CS2 and GR-1299-CORE AIN

IS41, WIN  ANSI/TIA/EIA-41.5-D, Wireless Intelligent Networking (WIN) extensions ANSI/TIA/EIA-751, ANSI/TIA/EIA-764, ANSI/TIA/EIA-771, ANSI/TIA/EIA-826 [Prepaid]
CAMEL CAMEL Application Part specifications v1-v4
MAP (Mobile Application Part)  GSM TS 09.02, TS 29.002
MTP (Message Transfer Part) as defined by the ITU-T, ANSI.

(ISDN User Part) ITU-T Q.761-Q.764, Q.767, ETS 300 356-1, ANSI T1.113, national variants including German ISUP, Japanese TTC ISUP.


(Bearer Independent Call Control)  Q.1902.1 – Q1902.5, Q.765.5, Signalling Transport Converter Q.1901