Answering the phone with a VoIP account

We prefer to work asynchronously and don’t advertise a support phone number. Still, some projects have users who really appreciate phone support, so they keep a phone number that routes to a VoIP (SIP) account at CheapConnect. To take those calls, register a softphone with that account’s SIP credentials.

Projects with phone support

Project	SIP account (Bitwarden item, collection)	Voicemail email
ITSLanguage	ITSLanguage KAT support telefoonnummer (ITSLanguage - Tech)	support@itslanguage.nl

SIP credentials live in Bitwarden, never in this handbook; each account’s notes hold the full configuration. Missed calls go to voicemail, emailed as an MP3 to the address above.

Softphone

Use an open source SIP softphone:

• Telephone — macOS-native, also in the Mac App Store.
• Linphone — macOS, Windows, Linux, and mobile.

Configure

Setting	Value
Username	SIP username (from Bitwarden)
Domain/server	voip.cheapconnect.net
Password	from Bitwarden
Transport	UDP, port 5060
Codecs	G.711A (alaw), G.729A/B
DTMF	RFC2833
STUN/TURN	off

Tip

If registration fails behind a router, disable SIP ALG, or use port 5080 or the alternative server sip.cheapconnect.net.

A forwarded call shows the original caller’s number, the same as a direct call, so registering the softphone (instead of forwarding to a mobile) is the only way to recognize these calls as coming in on the support line.