- SIP protocol support
- H.323 protocol support
- Standards-based codec support: G.711, G.726, G.729A/B, G722 (G.726 is not available in SIP)
- Supports the following languages: Arabic, Brazilian Portuguese, Simplified Chinese, Dutch, English, Canadian French, Parisian French, German, Hebrew, Italian, Japanese (Kanji, Hiragana and Katakana), Korean, Latin American Spanish, Castilian Spanish, and Russian.