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Telephony cards provide the telephony interface to the system. Commercial telephony cards for the Avaya IR system are provided by Natural Microsystems (NMS). The dual telephony cards for the Sun Blade 150 platform support the following:
Performance
The Avaya IR system can have a maximum of two telephony cards. Using a third telephony card or another card in the third PCI slot exceeds the limits of the power supply and system resources. With two telephony cards, the Avaya IR system supports 96 T1 ports or 120 E1 ports.
Channel capacities are summarized in the following table:
Application channels |
Maximum T1 channels |
Maximum E1 channels |
Comments |
PTTS |
48 (no NLSR or Avaya Recognizer) |
60 (no NLSR or Avaya Recognizer) |
Shares NIC with NLSR Proxy |
NLSR |
48 (no PTTS or Avaya Recognizer) |
60 (no PTTS or Avaya Recognizer) |
Shares NIC with PTTS Proxy |
Avaya Recognizer |
12 (no PTTS or NLSR) |
12 (no PTTS or NLSR) |
� |
Speech (PTTS, NLSR, Avaya Recognizer) |
48 |
60 |
� |
FAX |
32 (16 per card) |
40 (20 per card) |
Much of the FAX process on the Avaya IR system is handled on the CPU. The telephony cards handle the tiff conversion and DSP functions. |
Speech Playback/Coding |
96 |
120 |
The system processor and memory resources should allow for a total of 96 T1 or 120 E1 channels. Anything more may cause system problems and/or failures. |
Echo Cancellation |
96 |
120 |
� |
Note:
PTTS and NLSR capacities are directly related because both PTTS and NLSR share the same NIC, which is also shared by other Ethernet traffic, such as administration.
See also
