MOBILE VOICE NETWORK
What is the mobile voice network?
The resilience and quality of mobile calling, with the advanced features of a cloud phone system.
MOBILE VOICE NETWORK
The native call
Mobile phones have long been the go-to choice for businesses with a mobile or distributed workforce. Business mobile calls over the dedicated mobile voice network are consistent and reliable, but they do have limitations:
- A lack of advanced calling features
- Inadequate call analytics
- An inability to interconnect individual mobile users into one system.
In the realm of business mobile calls, mobile apps from VoIP phone systems or cloud phone systems have led the charge in innovation, offering features like call recording, call transfer, interconnected staff networks, and shared contact directories among others. However, they rely on a stable internet or mobile data connection to perform at a standard good enough for businesses. A poor or intermittent connection results in inconsistent call quality and potential downtime making the features unusable.
Built on the dedicated mobile voice network, Mobile+ gives business mobile users reliable and consistent call quality combined with enhanced voice features, elevating the calling capabilities of their business mobile phones.
So, rather than combining a VoIP or cloud phone system with a business mobile service to achieve the level of calling you need on your mobile phone, we built Mobile+ with the voice network as its cornerstone.
What is the difference between a mobile VoIP and a traditional mobile call over the dedicated mobile voice network?
There are two ways in which mobile calls are made and received. Dedicated voice channel calling is the standard means of voice communication offered by all network service providers. These calls are made over bandwidth dedicated to voice. This is the native mobile call. The other type is a data call, commonly known as VoIP calling, where voice is carried over the internet as data.
What is a mobile call?
On a native mobile call, once made or accepted, a channel is dedicated to the call. This gives an uncontended connection. Other bandwidth-hungry activity in the local cell, such as the downloading of video content, will not affect the quality or resilience of the call. Because this network is dedicated for voice communication, packets of voice data are transmitted with speed and no delay.
What is a data call?
Here the call is made or received over bandwidth shared with all other data applications being used in the local cell. Any variation in local cell usage will inevitably affect the contention of the call with other applications such as music and video downloading. These calls require a data connection (Wi-Fi or mobile data) and a compatible app or service, such as WhatsApp, Microsoft Teams or Zoom. Calls offer flexibility, potential cost savings, and additional features like video calling and messaging but depend on a stable internet connection for optimal call quality. Because of how data is transmitted, when there are competing services using the data connection, you may experience buffering, or delays in the conversation.
PUTTING IT TOGETHER
The Mobile+ call
Voice calling requires a signal to be traversed between the calling parties within approximately one third of a second (330ms). A longer period gives rise to confusion in the conversation. The sub 330ms path delay cannot be guaranteed for data calling and these calls may well therefore suffer from poor quality and resilience.
Business calls to and from customers, colleagues and suppliers need to be robust and reliable if the business activity is to be dependent on them. Therefore, companies with a key element of activity centred on field workforces would be likely to require full GSM calling with guaranteed quality of service (QoS) at all times. These companies will typically be in industries such as domiciliary care, construction, facilities management, estate agencies, transportation, physical security, and more.
Calls to and from Mobile+ are always over the mobile voice network. Our unique technology allows us to bridge the gap between resilient, high-quality calls and the features that a data connection can bring. At the same time you make a call from our app a short data message is sent to our cloud platform - this enables Mobile+ to do its magic.
Our technology allows us to enhance your native mobile voice network calls with advanced features such as call recording, transfers and real-time monitoring.
The PiPcall app is not a VoIP softphone. It makes and receives calls over the mobile voice network using the phone's existing SIM or eSIM, but from a separate virtual business number. Business calls get mobile network reliability while staying completely separated from the employee's personal line. Personal numbers stay private, and business numbers stay with the business when people leave.
Frequently asked questions
No. PiPcall Mobile+ carries mobile calls over the mobile voice network (GSM/VoLTE), not VoIP. Whether a user is deployed with a physical SIM, an eSIM or the PiPcall app, their calls travel over the dedicated mobile voice channel rather than WiFi or mobile data. For office-based roles, Mobile+ also offers optional VoIP endpoints, including a desktop softphone and compatible desk phones, which connect to the same service.
No. A softphone carries calls over the internet as data. The PiPcall app connects calls over the mobile voice network using the phone's existing SIM or eSIM, from a separate virtual business number. It looks like an app, but the call itself travels the same dedicated voice channel as a native mobile call.
No. Calls made and received through the PiPcall app use a separate virtual business number. Your personal number is never shown to business contacts, business calls do not appear in your personal call history or billing, and call charges are carried on the business account, not your personal plan.
Calls still connect. Because Mobile+ calls travel over the mobile voice network, they need mobile signal, not a data connection. Voice coverage typically extends further and more continuously than mobile data coverage, which is why VoIP app calls weaken or drop in places where a Mobile+ call carries on.
Yes. Calls on business numbers can be auto-recorded by policy, with no user action needed. Recordings are stored encrypted in the PiPcall cloud, never on the device, with playback, retention and export controlled by administrators. This supports teams that need call recordings as evidence, including rail, electricity, gas and construction operations.
Talk to us about calling over the mobile voice network
Tell us how your team works and we will explain what Mobile+ would look like for your users, numbers and devices.
Last reviewed: September 2026