Multi-Ringing / Multi-SIM Solution Description

With Multi-Ringing & Multi-SIM solution several additional SIM cards (Extra cards) share the same identification (Main card) MSISDN number.

Customers can have separate devices, for example a mobile phone, a car-phone and a PC -based Soft Phone, all sharing the same Main Card MSISDN, and can then be reached simultaneously on all of these devices.

The subscriber can be operating a mobile handset at the same time as transferring data or browsing the net with her laptop and data card.

The expanding of multi-SIM penetration with the Multi-SIM solution is a real growth area. Instead of starting a difficult and expensive fight for churners the operators have an alternative. Targeting the multi-SIM services the operators can now implement the strategy of serving all the communications needs of their customers.

The solution provides optional support for MO and MT SMS messages.


Product Details

One solution brings three services on the market:

  • Service 1: One Main SIM Card Subscription Associated with a SIP Soft Phone Account
  • Service 2: One Main SIM Card Subscription Associated with Several Extra SIM Cards
  • Service 3: One Main SIM Card Subscription Associated with Several Extra SIM Cards and a SIP Soft Phone Account

Service 1
  • A SIP account is associated with MRMS subscriber’s Main Card subscription
  • MRMS subscriber can initiate calls from her mobile phone (Main Card), or from a Soft Phone installed at her PC and/or Notebook; Called Party sees Subscribers Main MSISDN
  • Initiating/receiving calls from/on a Soft Phone while in roaming saves roaming charges for the subscriber
  • Calls towards subscriber’s Main Card MSISDN can be answered from the mobile phone device, or from a Soft Phone (if started)
  • Self-administration: option to enable/disable the terminating leg to the SIP Soft Phone
Service 2
  • Several (normally, two or more) Extra SIM cards with their own IMSIs & MSISDNs are associated with subscriber’s Main Card subscription
  • Subscriber can initiate calls from her mobile phone (Main Card), or from any other mobile device with an Extra SIM card; Called Party sees Subscribers Main MSISDN. Calls between MRMS cards can be optionally blocked
  • Calls towards subscriber’s Main Card MSISDN can be answered from the mobile phone device, or from any other device with an Extra SIM Card (if attached to the network)
  • Voice mail box, if provisioned, is shared between all SIM cards/devices
  • Self-administration: Force all devices follow sequential ringing (option)
Service 3
  • Several (normally, two or more) Extra SIM cards with their own IMSIs & MSISDNs and a SIP Account are associated with subscriber’s Main Card subscription
  • Subscriber can initiate calls from her mobile phone (Main Card), from any other mobile device with an Extra SIM card, or from a Soft Phone; Called Party sees Subscribers Main MSISDN. Calls between MRMS cards are not allowed
  • Initiating/receiving calls from/on a Soft Phone while in roaming saves roaming charges for the subscriber
  • Calls towards subscriber’s Main Card MSISDN can be answered from the mobile phone device, from any other device with an Extra SIM Card (if attached to the network), or from Soft Phone (if started)
  • Voice mail box, if provisioned, is shared between all SIM cards/devices
  • Self-administration: Force all devices follow sequential ringing (option)

Integration with other services
  • Line number presentation and restriction
  • Call forwarding
  • Voice Mail service integration
  • Missed call notification service integration
  • Private Ring-back tone service integration
  • Mobile VPN service integration
Operator benefits
  • Excellent opportunity to focus on the multi-account market and grow market share by increasing the number of subscriptions that subscribers have
  • A lucrative opportunity to lock in the customers and encourage usage through attractive pricing and by getting another phone in their hands
Customer benefits
  • Targeted and attractive tariffs
  • Multiple subscriptions, single contract
  • Single account for all subscriptions
  • Selection of the preferred device depending on the situation
  • No need to change the SIM cards
  • Avoid extra costs on roaming when using Soft Phone account