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Frequently Asked Questions

Maxis Business Voice SIP

  • Maxis ONEBusiness VoiceSIP plan will be renamed to Maxis Business Voice SIP.All plan features and rates remain the same.

  • You  have  to  be  subscribed  to  a  Maxis  Business  Fibre/DIA/MPLS  internet  connection  to be eligible for this solution.

  • Currently, fixed numbers are not portable and cannot be transferred to Maxis Business Voice SIP lines. However, you can choose a new fixed line number with your state prefix (03, 05, etc) with your Maxis Business Voice SIP.

  • Maxis Business Voice SIP is suitable for customers who has their own on-premise IP PBX system and want to connect it to a SIP trunk to enable them to receive in-bound and  out-bound  calls.  Customers  who  are  replacing  their  traditional  or  obsolete  PBX system  can  subscribe  to  Maxis  Business  Voice  SIP  when  they  purchase  their  new  IP PBX system.

  • We  recommend  that  a  Proof  of  Concept  (PoC)  to  be  conducted  to  demonstrate  and verify that Maxis SIP trunk is able to work with your equipment. This will be to identify any potential technical issues during PoC before actual implementation.

  • PoC will be conducted at the customer’s premise or at Maxis Lab test.

  • Yes, if your existing business telephone number used is a Maxis number.No,  if  your  existing  business  telephone  number  used  is  from  another  operator.  A  new Maxis Business Voice SIP Number will be provided to you. 

  • Yes, you can. An  Analogue  Telephone  Adapter  (ATA)  is  required  to  connect  a  traditional  fax  machine to the voice service on an IP Network.

  • No, we have discontinued CLIR feature since 30 June 2023, as per SKMM direction in compliance with Numbering and Electronic Addressing Plan (NEAP)

    CLIR stands for Caller Line Identification Restriction – where when an outgoing call is made, recipient will not see any telephone number displayed on the phone or “Private” will be shown.

  • Once CLIR feature have been removed, you will no longer be billed for this service and the person being called will be able to see the telephone number.

Ready to sign up for Voice SIP?

The FAQ’s are meant for clarification purposes only. The FAQ’s may be modified from time to time. Please refer Terms of Use and Terms & Conditions of the products and/or services for more information.

Need to get in touch with us?

Contact Maxis Business Customer Service