Does Reachable work with your provider?

Cloud phone system

Use a VoIP account that is not yet linked to a desk phone, the Voys app or the webphone. Each account works on one device. Ask your administrator for an extra VoIP account if needed.

You enter: Account ID and voIP account password

Cloud phone system

Use a VoIP account that is not already on another phone or app. If your provider gave you its own server address, enter that one.

You enter: Account ID and voIP account password

Internet provider

Your FRITZ!Box usually already uses your VoIP account. The platform behind Freedom Bellen advises one device per VoIP account. Ask the Freedom helpdesk for a second VoIP account for the app, or your home phone may stop ringing.

You enter: Account ID and voIP password

Cloud phone system

VOIPZeker does not publish its server address. Ask VOIPZeker for your user name, password and server address and enter them yourself. If an IP whitelist is on for your user, it has to be switched off.

You enter: User name, password and server address

Internet provider

Odido gives these details for your own modem at home. It is not confirmed that they work outside your Odido line. You choose the SIP password yourself in Mijn Odido; Odido cannot look it up for you afterwards.

You enter: SIP user name and SIP password

Internet provider

You only get the SIP password from Online.nl customer service. Online.nl only describes the details for your own modem; it is not confirmed that they work in an app or outside your line.

You enter: Your phone number and SIP password

Cloud phone system

Works, but each VoIP account can only be on one phone or app at a time. Use a VoIP account that is still free, or add one in Freedom. Also add the account to your call plan, otherwise this app will not ring for incoming calls.

You enter: Account ID and voIP account password

VoIP provider

Works, but a Weepee SIP account is meant for one device. Did you use the account on another device before? Then click 'Reset User-agent beveiliging' in the customer tool, otherwise outgoing calls fail. Type your details exactly: after a wrong password Weepee blocks the address the sign-in came from. Calls abroad only work after you ask Weepee support to switch them on (free).

You enter: SIP user name and SIP password

VoIP provider

Voipfone lets only one device sign in to an account at a time. If you already use another phone or app, this app takes its place. With Voipfone's phone system you can give this app its own extension.

You enter: Account number and phone password

VoIP provider

At dus.net a SIP connection can only be signed in on one device at a time. Create an extra SIP connection for this app in the Kundencenter, otherwise the app takes over from your other device.

You enter: SIP user name and SIP password

Internet provider

Telekom gives these details for your own phones and apps, but does not say whether they work outside a Telekom line. Our server is outside that network. Try it; if it fails, forward your Telekom number to a number from a VoIP provider.

You enter: Phone number, E-mail address (Telekom login) and password

Internet provider

1&1 gives you phone details for your own router. Whether you may use them outside your own 1&1 line is not stated anywhere. If signing in fails, set up call forwarding at 1&1 to a number from a VoIP provider.

You enter: Phone number and telephony password

Internet provider

Deutsche Glasfaser does not say whether you may use the SIP details outside your own fibre line. Enter the details from MeinDG and try. If it fails, set up call forwarding to a number from a VoIP provider.

You enter: SIP user name, SIP password and SIP server (registrar)

VoIP provider

Anveo allows only one device per user. If your account is already in use on another device, create an extra user (sub-account) in Anveo for this app.

You enter: SIP user name and SIP password

VoIP provider

Works with a SIP Connection of the Credentials type. It needs a number and an Outbound Voice Profile assigned. Turn on 'Caller ID override' in the outbound settings, or Telnyx will refuse outgoing calls.

You enter: SIP connection user name and SIP password

VoIP provider

Works only if you set up the call handling in Twilio yourself: a SIP domain with registration switched on, a Credential List, and instructions (for example a TwiML Bin) for incoming and outgoing calls. Without them no calls reach the phone network. Always dial numbers with + and the country code.

You enter: User name, SIP password and SIP domain

Free SIP service

Free service for internet calls to other SIP addresses. Calling ordinary numbers needs prepaid credit, and there is no phone number for incoming calls from ordinary phones.

You enter: Username and password

Free SIP service

Free service for internet calls to other SIP addresses. It comes without a normal phone number, so you cannot call or be called by ordinary phones.

You enter: Username and password

Cloud phone system

Works with a separate 'Existing Phone' device that your administrator adds in RingCentral and sets up manually. You need the SIP details and the outbound proxy from the admin portal. Manually set up devices get no encryption and no advanced features.

You enter: User Name, SIP password (Password), authorization ID, SIP Domain and outbound Proxy

Cloud phone system

8x8 only gives SIP details for other devices when your administrator opens a support case. An account gets at most 5 for free, the extension must not be linked to another device yet and the details work on one device at a time. 8x8 does not help with the setup.

You enter: User name and SIP password

Cloud phone system

Your administrator adds a device as 'Phone not listed (Generic SIP)' in Nextiva and gives you the details. Nextiva describes TCP as the connection type; it does not say whether UDP works too.

You enter: SIP username, SIP authentication name and SIP password

Cloud phone system

Your administrator can create SIP details for a 'SIP Phone' in Dialpad. Dialpad advises against it: with such details you cannot call abroad and emergency calls do not work.

You enter: User name, SIP password and domain

Cloud phone system

Aircall only turns on SIP devices when your administrator asks their account manager. After that, making and receiving calls works, but transfer, hold and voicemail notifications do not. Aircall does not help with the setup.

You enter: User name and SIP password

Cloud phone system

Telavox only gives SIP details on request, and only to an administrator. Ask your administrator to request them from Telavox. Telavox does not help with setting up your own equipment.

You enter: User name and SIP password

Phone system

3CX only lets another app sign in from outside the office when your administrator allows it for your extension. Ask your administrator to allow sign-in from outside the network (without the tunnel) for your extension.

You enter: Extension number, authentication ID, password and 3CX FQDN

Phone system

Works if your phone system can be reached from the internet. The built-in FreePBX firewall does not let unknown addresses in by default: your administrator must switch on the Responsive Firewall or trust our address. Note: a few wrong passwords block our address for a day.

You enter: Extension, password (Secret) and PBX address

Phone system

Your administrator must allow sign-in from outside first: tick 'Allow Remote Registration' on your extension, or give your extension access through the Yeastar FQDN. By default only one SIP device per extension can be signed in at a time: this app then takes the place of your desk phone, unless your administrator raises that number.

You enter: Extension number, registration name, registration password and PBX address

Phone system

Your administrator must switch on NAT and 'Register Remotely' for your extension and forward the SIP port on the router. Then you can sign in from outside.

You enter: Extension number, registration name, registration password and PBX address

Phone system

Only works if you allow sign-in from the internet for this phone in your FRITZ!Box and your FRITZ!Box has its own public IPv4 address. On a DS-Lite connection (no own IPv4 address, common on cable or fibre) it will not work. FRITZ! itself advises against signing in over the internet and recommends a VPN.

You enter: User name, password and myFRITZ! address