CSIPSimple is #5 in Top 11 SIP Softphones

CSIPSimple
Native sip app for android device. SIP for calls and instant messages. Android integration with rewriting and filtering rules. Echo cancellation (with various backends : webRTC, speex, simple).

Positions in ratings


#5 in Top 11 SIP Softphones

Alternatives


The best alternatives to CSIPSimple are: Linphone, Bria, Zoiper, 3CX Phone, Truphone