These products are softare development kits that allow your developers to implement protocol products quickly and easily.
An interworking between TeleSoft's Compact SIP software and PSTN protocols like ISDN PRI and BRI, QSIG, and T1 RBS and E1 R2 CAS. This allows you to add a SIP interface to your ISDN PBX or an ISDN interface to your SIP device. This software development kit is also a good start on a standalone gateway.
TsSmartPhone is a softphone Software Development Kit that allows you to integrate VoIP into your software product with very little engineering effort. Several versions of TsSmartPhone are available.