===== SDF VoIP Telephony Service ======

  * [[setting_up_a_sip_phone_with_sdf_voip|Setting up a SIP phone with SDF VoIP]] - allows an SDF user to make voice and video calls
  * [[sdf_voip_client|SDF VoIP Client]] - configuring a SIP client to work with SDF's VoIP service
  * [[SDF VoIP Extension Directory|SDF VoIP Extension Directory]]
  * [[using_a_cisco_7940g_or_compatiable_phone_with_sdf_voip|Using a Cisco 7940G or compatiable phone with SDF VoIP]] - requires //SIP// firmware installed on the phone
  * [[using_freepbx_with_sdf_voip|Using FreePBX with SDF VOIP]]

**Tip**: Search the SDF wiki for tutorials that contain a mentioned subscription keyword.

|[[https://sdf.org/?subscribe|For use by existing ARPA members]]// ((Type '//arpa//' at the SDF shell (''$ arpa'') for details.))// // (([[https://sdf.org/|UNIX Shell Account]].))//|Support SDF through recurring donations and memberships (//html//; [[https://sdf.org/?subscribe|annual subscriptions, including MetaARPA, VPN, VPS, VHOST, VoIP, MOTD.ORG, DBA DataBase membership, TWEAK Disk Array Storage Fund, NeinPlan! Support the Plan9 Server, Support SDF's efforts in the fediverse (Mastodon, Peertube, Pixelfed, Matrix, lemmy, teddit, et cetera)]])|