Telephone: Free SIP client (softphone) for Mac OS X

I. Telephone App

Telephone is an open source sip client (softphone, voip) for Mac OS X.  It is available at Mac AppStore.

Telephone is a VoIP program which allows you to make phone calls over the internet. It can be used to call regular phones via any appropriate SIP provider. If your office or home phone works via SIP, you can use that phone number on your Mac anywhere you have decent internet connection.

II. Configure Pennytel in Telephone App:

1. Install Telephone via AppStore
2. Configure Pennytel account in Telephone:
   1. Full Name: your 10 digits pennytel number
      Domain: sip.pennytel.com
      User Name: your 10 digits pennytel number
      Password: your pennytel voip password
      
      
   2. Allow Telephone access Contacts
   3. Now you should be able to make phone calls by entering the phone number in the field: