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Help center

Technical

Can I access and configure voicemail through my phone or on the Customer Portal?

You can create an unlimited number of mailboxes on the Customer Portal. You can assign a voicemail to each VoIP.ms user and have them configure it to their liking for when they are unavailable to take a call, or you can route the calls according to your needs.

Can I call any phone number or just VoIP numbers?

With VoIP.ms, you can call any number, including mobile phones, landlines and other VoIP numbers.

Can I order a number outside of my residence area?

Yes, you can order a number from any available location, no matter where you are located. This number can be used anywhere in the world and will be considered local for the callers in the number’s area (i.e., a number from New York will be considered local for New York callers, even if you are physically located in Canada).

Can I use my existing device with VoIP.ms?

Basically, any device or system that supports the SIP or IAX2 protocol will work with our service. If you bring your device (ATA, IP phone) from a previous provider, make sure that it is unlocked and that you are able to make changes to its configuration.

Do you offer a test account or test number?

We do not currently have a test account or test number program. However, opening an account is completely free, and we provide free dialing codes to test the quality of the service.

You can check out our many dialing codes here: Dialing Codes

Do you offer alternative ports besides 5060?

We offer alternative SIP ports, UDP/TCP 5080 and 42872 on all of our servers . You can try those ports in case your Internet service provider blocks the port UDP/TCP 5060 or if you need to use another one.

Do you offer voicemail?

Yes. VoIP.ms has an Advanced Voicemail feature that is free to use, and you also have the option to forward your messages to your email address as an attachment.

Do you support DTMF?

Yes. VoIP.ms supports DTMF, both In-Band DTMF and Out-of-Band signaling through the industry standard RFC2833 specification.

Do you support TCP for SIP communications?

TCP is fully supported on our servers

Do you transmit DSCP QoS priority bits?

Yes. We transmit Code CS3 for SIP and EF for RTP.

Does VoIP.ms encrypt communications?

SIP communications are secure albeit not encrypted. However, passwords are MD5-hashed and are not transmitted without encryption when establishing the call.

How do I delete my DID?

From the Customer Portal, go to the “DID Numbers” menu tab and then click “DID Billing”. From this page, you can cancel number(s). Please bear in mind that this process cannot be reversed, so be sure that you will no longer need the number.

How many messages can I store in my mailbox?

The total number of voicemail messages allowed in a single mailbox is 100.

Is there a charge for changing phone numbers?

No. VoIP.ms will not charge you for changing your phone number. However, you will be charged the standard setup fee for activating a new number.

To get a new number, simply access our Customer Portal in the Order DID(s) section to see a list of available numbers to choose from.

What hardware is compatible with VoIP.ms?

VoIP.ms is a BYOD (Bring Your Own Device) provider, which means that you get to use you own hardware and are not obligated to get your equipment from us.

Almost every device that accepts custom SIP configurations (such as Smartphones, VoIP phones, ATA Adapters, and PBX software and Hardware) is compatible with VoIP.ms.

What is my Main Account SIP password?

By default, your main account SIP password is the same as your Customer Portal password. If you have not changed your SIP password, it is the same password you use to log into the Customer Portal.

You can change your SIP password on the Customer Portal at any time from the Main Menu, Account Settings page. Please check our related article for more information: Account Security.

What is the maximum length of a voicemail message?

The maximum length a voicemail message is three minutes.

What Server should I use?

Usually, in order to receive better results, you should choose the server physically closest to your location. You can also send a ping to any of the servers to check the best response time. Please check our related article for more information about this subject: Choosing Server.

What software is compatible with VoIP.ms?

As a general rule, the vast majority of SIP software is compatible with VoIP.ms. This software can be downloaded from the respective store or company website, depending on the OS (iOS App Store, Android Google Store, Windows Mobile, etc.).

The same goes for software-based PBX Systems (asterisk for example) that accept SIP custom configurations.

What voice codecs does VoIP.ms support?

Currently VoIP.ms support codecs G.711 u-law, G.729A and GSM.

Which server should I use?

Usually, in order to receive better results, you should choose the server physically closest to your location. You can also send a ping to any of the servers to check the best response time.

Please check our related article for more information about this subject: Choosing a Server.

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