12.3. Making a Call

Once Linphone is configured appropriately, making a call is straightforward. Depending on the type of call (see Section 12.1.2, “Determining the Connection Type” (↑Applications) for reference), the calling procedures differ slightly.

  1. Start Linphone using the menu or a command line.

  2. Enter the SIP address of the other party at the SIP address prompt. The address should look like sip:username@domainname or username@hostname for direct local calls or like username@sipserver or userid@sipserver for proxied calls or calls using the service of a SIP provider.

  3. If using a SIP service provider or a proxy, select the appropriate proxy or provider from Proxy to use and provide the authentication data requested by this proxy.

  4. Click Call or Answer and wait for the other party to pick up the phone.

  5. Once you are done or wish to end the call, click Release or Refuse and leave Linphone.

If you need to tweak the sound parameters during a call, click Show more to show four tabs holding more options. The first one holds the Sound options for Playback level and Recording level. Use the sliders to adjust both volumes to fit your needs.

The Presence tab lets you set your online status. This information can be relayed to anyone who tries to contact you. If you are permanently away and wish to inform the calling party of this fact, just check Away. If you are just busy, but want the calling party to retry, check Busy, I'll be back in ... min and specify how long you will not be reachable. Once you are reachable again, set the status back to the default (Reachable). Whether another party can check your online status is determined by the Subscribe Policy set in the address book, as described in Section 12.5, “Using the Address Book” (↑Applications). If any party listed in your address book published their online status, you can monitor it using the My online friends tab.

The DTMF tab can be used to enter DTMF codes for checking voice mail. To check your voice mail, enter the appropriate SIP address and use the keypad in the DTMF tab to enter the voice mail code. Finally, click Call or Answer as if you were making an ordinary call.