The Pie IMS Engine platform is a software only carrier grade solution for operators wishing to thrust their customers into next generation services. Whether you are a cable operator, a fixed wireless operator or an LTE operator the benefits of IMS are immense.

1. (Pie)
IMS Engine
Data Sheet
Introduction:
The Pie IMS Engine platform is a software only carrier grade solution for operators wishing to thrust
their customers into next generation services. Whether you are a cable operator, a fixed wireless
operator or an LTE operator the benefits of IMS are immense. The following services and other custom
services can be added to the PIE.
 VoWiFi and Video calling with EAP-SIM support
 Full Mobile core integration (2G/3G/LTE/WiMax) including SMS for Fixed Mobile Convergence
 Ability to use from any medium even WiFi when outside operator coverage area
 Connectivity to older TDM/SS7 systems via specific gateways (PES/MMTel)
 Ability to connect to most Media Gateways
 Built-in HSS and ability to connect to third party HSS
 Session Border Controller (SBC) support
 Instant messaging and Conference Services, file and media transfer
 Push to Talk (PTT) Services
 Authentication, Authorization and Accounting features
 Call routing features and DNS ENUM/E.164
 Voice call continuity (VCC)
 Online/Offline Charging (OCS/ OfCS)
 PCRF connectivity and Quality of Service (QoS) and Rate Limiting
 Full Lawful Intercept (LI) Support as per Iranian CRA
 Custom Application Servers (AS)
 White label client for Android, iOS, Windows Phone, Windows Desktop with multiple Codec
support (GSM, opus, iLBC, SILK, PMCU, PCMA, AMR-WB, G.722, G.729)
In addition to the above, many value added services (VAS) can be custom defined as per marketing
department needs.

2. Elements Provided:
PIE as a standalone solution offers the following standards based elements for use as the
operator begins its roll-out. Other elements can be customized to meet customer requirements as
needed:
 P/I/S- CSCF
 Home Subscriber Server (HSS)
 MGCF
 AGCF
 IM-SSF
Interfaces Supported:
IMS, as an evolving standard, is constantly changing. The PIE multimedia platform, currently
supports an expanding list of IMS interfaces consisting of but not limited to the following:
Interfaces Protocols
Cx, Dx, Dh Diameter
Gm SIP
Gx, Gy Diameter
ISC SIP
Ma, Mg, Mg, Mk, Z SIP, ISUP, SIGTRAN
Mm, Mn SIP-I/T, H.248, RTP, ZRTP, TLS
Mw SIP
P1, P2 SIP, H.248, SIGTRAN
Rf, Ro, Rx Diameter, RADIUS, TCP, SCTP
Sh Diameter
Si MAP
Ut HTTP/XCAP

3. SBC Function Supported:
The following Session Border Controller (SBC) functions are also supported:
 Network Address Translation (NAT)
 NAT and Firewall Traversal
 Privacy of User Identity and Network Topology
 Routing of Signaling entering the IMS Core
 Protection from Denial of Service (DoS) attacks via firewalling
Standards Compliance:
The PIE adheres to the necessary 3GPP/3GPP2/IETF standards consisting of, but not limited to
the following:
 TS29.229, TS29.212, TS29.214
 TS29.211, TS23.203, TS32.299
 RFC 4006, RFC 6733, RFC 3261
Hardware Requirements:
In order to deploy a cost effective, distributed and expandable architecture, the PIE platform
uses commodity servers that can be deployed and expanded as needed horizontally. The architecture
would look like the below diagram. High availability (HA) is attained through Linux clustering.
Management Interfaces:
For effective use, the operator needs to be able to integrate the system into their existing NOC,
CRM, and billing systems. The PIE platform provides management interfaces via a Web console and
SNMP for KPI monitoring. A call trace function and call log mechanism will allow NOC users to
troubleshoot problems.