• Leverage on the power of Next Gen NBN (NGNBN)

    Utilising the NGNBN fibre network, M1 also offers digital voice service to businesses. In addition to the high voice quality resulting from the use of a high-speed fibre connection, a range of features are included with the service.

    For more advanced features, opt for M1's IP Centrex telephony solution. This is available for businesses looking for a hosted-PBX service managed by M1. This service is designed with all the features of a PBX but without the associated capital, lease and maintenance costs. The solution delivers high-quality voice over the NGNBN network and interoperates seamlessly with the normal Public Switched Telephone Network (PSTN). M1's corporate clients can utilise IP-PBX features without the need to purchase and maintain their own PBX on their office premises.

    Features and Benefits


    Scalable and Cost-effective
    Leverage on the fibre broadband bandwidth for the corporate fixed voice services. The pay-as-you-use model eliminates the need for capital investment in equipments as you can scale the number of phone lines as and when required.


    Ease of use
    Feature-rich phone features are available with minimal training requirements. M1 provides a list of command codes that you can easily reference to for phone features such as call waiting, call barring, call divert or 4-digit extension dialling.


    Professional and Dedicated Service Support
    Besides round-the-clock support service, we have a pool of dedicated M1 Account Managers to assist our business customers.

    Product Sheet Download
    Terms and Conditions

    M1 offers a full suite of business solutions and professional IT expertise to meet your business needs.

    Enquire Now

  • Digital Voice Service Call Charges Features
    Corporate Digital Voice

    Outgoing: $0.0107/minute
    Incoming: Free

    Call Barring
    Call Waiting
    Call Divert
    Caller Number Display
    Three-Party Voice Conference

    Download Digital Voice Command Codes

    Digital Voice Service Call Charges Features
    M1 Centrex

    Outgoing: $0.0107/minute
    Incoming: Free
    Intra-Centrex: Free

    Call Divert
    Caller Number Display
    4-digit Extension Dialling
    Direct Inward Dial (DID) Number
    Out-Centrex Prefix
    Three-Party Voice Conference
    Call Waiting
    Call Barring
    Call Transfer
    Call Hold
    IDD/ Premium Calls

    Download M1 Centrex Command Codes

    M1 Corporate Fixed Voice customers (Digital Voice and M1 Centrex) will enjoy a one-time free number delisting service from both the integrated directories service and the Directory Enquiries service, effective from 1 April 2014. Thereafter, an administrative fee of S$5.35 (inclusive of 7% GST) is applicable for subsequent requests to have your number listed or delisted. All requests for listing or delisting will be effective within 7 working days.

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