APPLICATION PROGRAMMING INTERFACE (API)-BASED CONCURRENT CALL PATH (CCP) PROVISIONING

APPLICATION PROGRAMMING INTERFACE (API)-BASED CONCURRENT CALL PATH (CCP) PROVISIONING

Application programming interface (API)-based concurrent call path (CCP) provisioning

System for cloud-enabling a premise PBX

Application programming interface (API)-based concurrent call path (CCP) provisioning

System for cloud-enabling a premise PBX

User-based differentiated routing system and method

Method and system for dynamic trunk group based call routing

Subscriberless differentiated routing system and method

Communication device

GROUPING OF CIRCUITS

Geographic trunk groups

System and method of providing telecommunications special services to a telecommunications customer

Geographic trunk groups

Method and system for processing telephone calls via a remote tie-line

Prioritized call load balancing

Method for trunk line duplexing protection using a hardware watchdog

Method for selecting impedance setting for loop start trunk line

Wireless Backup Telephone Device

COMBINED TELEPHONE PBX AND COMPUTER DATA ROUTER WITH POOLED RESOURCES

Switch proxy for providing emergency stand alone service in remote access systems

Method of selecting impedance setting for loop start trunk line

Methods and systems for providing session initiation protocol (SIP) trunk groups

Office-line trunk circuit operating on ground-start and loop-start modes, method of controlling same, and control program for same