VoLTE voice over lte with softphone and ptt


As mobile operators begin to put voice on their LTE network, it’s important to have a reliable and dependable partner with a flexible Application Server. As market demands grow and user needs change, the REDCOM Application Server has the ability to deliver beyond your expectations, providing robust and full-featured services that exist today, as well as support the rapid development and deployment of new, more updated services to meet subscriber demand for tomorrow.


REDCOM VoLTE Suite Advantages

Complete software solution, fully virtualized operating environment. Our 100% software solution is deployed in a virtual environment, reducing hardware dependencies and significantly reducing OPEX and CAPEX.

Carrier-grade, high availability cluster with redundancy. Extremely reliable and well tested, our solution is engineered and tested to exceed five-nines high availability standards.

Flexibility to work with existing and planned network. Our Telephony Application Server (TAS) includes interfaces to interoperate with IMS and other network elements. It supports the messaging interfaces needed for CAMEL, MAP, and IN as well as SIP, Diameter, and SIGTran protocols.

Expertly integrated with support from an experienced team that understands carrier concerns. Key players on the REDCOM team have over 50 years of combined experience in telecommunications and with the REDCOM product line.

Cost-effective. Our solution allows you to implement exactly what you need, no over-investing in unnecessary components.

voice service solution with VoLTE Voice over LTE

A complete voice service solution

REDCOM provides powerful service layer applications for VoIP, VoLTE, IMS, and Converged IP/TDM networks that are flexible to meet the needs of any network and subscriber. Our highly scalable software platform brings added value to service providers because of its proven ability to provide current services on legacy networks while simultaneously allowing rapid development of new services for evolving networks.

Our solution is a single bundled product with a number of IMS elements to help you achieve VoLTE.

VoLTE TAS. Flexible, robust, and conforming to 3GPP, our Telephony Application Server is responsible for call establishment and call control.

VCC-AS. This allows operators to make call handovers while maintaining QoS as a mobile phone moves between an LTE and non-LTE Network (GSM or CDMA), for a consistent and seamless subscriber experience. With both IMS and GSM protocols to talk to your MSC, MME, and other network equipment, this solution can help you achieve SRVCC and eSRVCC requirements by ensuring subscriber services regardless of LTE or non-LTE calls. With native CAMEL and MAP interfaces, voice call continuity handovers from LTE to CDMA may also be achieved.

SCC-AS. This flexible and robust element uses methods defined by 3GPP as part of IMS Centralized Services (ICS), calls are anchored in the SCC-AS ensuring consistency. For all calls that are anchored, the SCC-AS acts as a Back-to-Back-User-Agent (B2BUA), establishing call legs to all endpoints from the INVITE to the BYE.

MMTel. We have the capabilities to provide for feature sets such as Rich Communications Services (RCS).

IP-SM-GW. The IP-Short Message Gateway conforms to 3GPP standards, providing for the delivery of SMS messages between participants.

I/S/E-CSCF. Our solution is deployed behind your P-CSCF and interworks with your existing LTE network elements, providing you with a full end-to-end VoLTE solution.


While IMSWorkX was acquired by REDCOM, this message and mission still ring true today. You can learn more about Shannon and get into contact with her here.