The table provides feature overview of six open source IMS clients:
| IMS clients | Boghe IMS/RCS client | iDoubs | IMSDroid | myMonster TCS | UCT IMS client | IMS Communicator |
| www | code.google.com/p/boghe | code.google.com/p/idoubs | code.google.com/p/imsdroid | www.monster-the-client.org | uctimsclient.berlios.de | imscommunicator.berlios.de/ |
| License | GPLv3 | GPLv3 | GPLv3 | free, own | GPLv2 | LGPL |
| Last release | 2.0.91.683 | 2.0.184 | 2.0.481 | 0.9.19 TCS | 1.0.13 | 0.70.605 |
| Date | 24.2.2012 | 20.9.2011 | 28.2.2012 | 2009 | 13.2.2009 | 8.7.2007 |
| Operating system | Win | iOS,Mac OS X | Android | Multiplatform (Java) | Linux | Multiplatform (Java) |
| Multiple accounts | No | No | No | Yes | No | No |
| Registration | AKAv1/v2-MD5, MD5, basic | AKAv1/v2-MD5, MD5, basic | AKAv1/v2-MD5, MD5, basic | AKAv1/v2-MD5, MD5 | AKAv1/v2-MD5, MD5 | AKAv1-MD5, MD5 |
| IMS Signalling | Yes | Yes | Yes | Yes | Yes | Yes |
| SigComp | Yes | Yes | Yes | No | No | No |
| Audio | Yes PCMA, PCMU, GSM, AMR-NB-OA, AMR-NB-BE, iLBC, Speex-NB |
Yes G.722, G.729AB, AMR-NB, iLBC, GSM, PCMA, PCMU, Speex-NB, Speex-WB, Speex-UWB |
Yes G729AB1, AMR-NB, iLBC, GSM, PCMA, PCMU, Speex-NB |
Yes PCMA, PCMU, MCA |
Yes GSM, PCMA, PCMU, MP2 |
Yes JMF codecs |
| Video | Yes MP4V-ES, Theora, H264, H263/+/++ |
Yes VP8, H264, MP4V-ES, Theora, H263/+/++ |
Yes VP8, H264, MP4V-ES, Theora, H.263, H.263-1998, H.261 |
Yes H.263, MP2T, H.263-,MPV, MP4V-ES |
Yes – |
Yes JMF codecs |
| Messaging/Chat | Page / Session mode | Page / Session mode | Page / Session mode | Page / Session mode | Page mode | – |
| Presence | Yes OMA, IETF |
Yes OMA, IETF |
Yes OMA, IETF |
Yes OMA, IETF |
Yes – |
Yes – |
| XDMS/XCAP | Yes | Yes | Yes | Yes | Yes | No |
| Security | TLS, IPSec | – | TLS, IPsec | – | No | IPSec |
| IPv6 | Yes | Yes | Yes | Yes | Yes | Yes |
| NAT Traversal | Yes STUN/TURN |
Yes STUN/TURN |
Yes STUN/TURN |
No | No | Yes STUN |
| P-CSCF discovery | Fixed, DNS NAPTR+SRV | Fixed, DNS NAPTR+SRV | Fixed, DNS NAPTR+SRV | Fixed, SRV DNS | Fixed | Fixed |
| Other features | Enhanced Address Book, Content Sharing, File Transfer, Image share |
– | File Transfer, Image Sharing, Video Sharing | File transfer, Group list management | IPTv (RTSP) | – |
| Notes | SIP message debug window, precompiled accounts (Alice, Bob) |
