Ulticom's Signalware software provides solutions to accelerate development and deployment
of network elements that enable mobility services. Application developers can take
full advantage of Signalware's Wireless APIs, including GSM Mobile Application Part
(MAP), TIA/EIA-41, SS7 protocols, CAMEL Application Part (CAP), Signaling Transport
(SIGTRAN), and Session Initiation Protocol (SIP). Signalware software offers an
unparalleled combination of scalability, global interoperability, fault resilience
and standards-based Application Programming Interfaces (APIs) on open computing
platforms. Signalware can be used to develop a variety of mobility network elements,
such as Home Location Registers (HLRs), Authentication Centers (AuCs), and Equipment
Identity Registers (EIRs).
Evolution from Wireless Voice to Wireless Data
Mobile communications is about the freedom to access communication services - anytime
and anywhere. To provide continuous telecommunication services the network needs
information on a subscriber's presence, status, and serving location.
As businesses more frequently use mobile communications to increase employee productivity
and availability, the number of mobile subscribers and minutes of use is growing.
Mobile usage also increases as personal lifestyles change, such as individuals traveling
more and often living "on the go".

TIA/EIA-41 Mobility Solution Architecture
Mobility is gaining a new dimension and is no longer only about roaming in a specified
network. Incumbent service operators must authenticate users of new switching networks
into the service and subscription umbrellas of their existing network operations.
Wireless data markets, for example, are growing at a rapid pace using technologies
such as General Packet Radio System (GPRS) and Mobile IP services in 2.5G networks.
When deployed, 3G Universal Mobile Telecommunications System (UMTS) networks will
enable fast connection speeds exceeding 2 Mbps for true broadband wireless services.
Low-cost and low-barrier-to-entry IEEE 802.11-based solutions are fueling the rapid
emergence of Wireless LAN (WLAN) networks. Service providers have a compelling interest
in providing integrated authentication, billing, and handoff between traditional
wireless networks and wireless LANs. This would enable consistent user experience
in switching, payment, location, and messaging services.

Wireless LAN Integration in GSM Networks