| SIP-URI User: | Settings → Account → Extension limited in character set, for example, no period allowed |
| SIP-URI Host: | Settings → Account → Domain |
| SIP-over-TLS: | Settings → Account → TLS |
| SDES-sRTP: | Settings → Account → SRTP which is RTP/SAVP |
| SHA-2 Digest: | does not pick MD5, continues without header Authorization, therefore is not able to register; therefore incompatible with Linphone |
| Bugs: | trust on first use: commonName and organizationName but no signature of certificate are presented to end-user on first use |
| Privacy: | app phones to Google Firebase Crashlytics |