1. Convert any signaling between SS7, ISDN PRI, R2/CAS, V5.2, Q.SIG, DPNSS；
2. Bidirectional conversion between 2E1 to 2E1, modular design with up to 16 E1；
3. Support voice recording and play, conference；
4. Provide CTI interface for user program control.
1. Convert any signaling between SS7, ISDN PRI, R2, V5.2, Q.SIG；
2. Bidirectional conversion between 4E1 and 4E1, modular design with up to 16 E1；
3. Support voice recording and play, conference；
4. Provide CTI interface for user program control.
1. Convert any signaling between SS7, ISDN PRI, R2, V5.2, Q.SIG；
2. Bidirectional conversion between 8E1 and 8E1；
3. Support voice recording and play, conference；
4. Provide CTI interface for user program control.
