Hampton Software has released Articulation which is the latest VoIP application for the Palm OS. Compatible with most of the Palm OS 5+ devices with a microphone, it is being regarded as the first service independent VoIP phone for Palm OS which implies that one could use it with a number of different VoIP service providers. It supports the standard SIP VoIP protocol and works with most of the SIP VoIP service providers but as of now doesn't gel with Skype.

Stated below are the features of the program:

Program Features:

- Ability to make PSTN calls with your PDA
- Select the SIP VoIP provider of your choice
- Lookup phone numbers direct from you contacts
- Touch-tones (DTMF) for 'phone menus'
- Supports WiFi, Bluetooth and EVDO connections
- Call timer
- Silence suppression (only transmit your voice)
- Echo cancellation for 'speakerphone' use

Technical Features:

- Secure account authentication with SIP MD5 Authentication
- Supports GSM and G711 codecs (GSM is suited to low bandwidth connections)
- NAT support through RFC 3581 and ability to fix ports for symmetric NATs
- Symmetric RTP support
- Low latency
- Low memory usage

One could test Articulation before purchasing it as it has a one minute call restriction and the registration charges are $37.78 USD.