MicroSIP is a lightweight VoIP solution focused on audio calls with high-quality performance, while Ekiga offers a broader set of features including video conferencing and messaging, making it suitable for more complex communication needs.
MicroSIP
Pros:
Lightweight and portable
Offers high-quality VoIP calls
Supports various audio codecs
Easy to configure
Free and open-source
Cons:
Limited functionality compared to larger VoIP solutions