Interfacing Bogen C100 to SCCP ATA or H.323 Voice Gateway

[kbyrd]

Has anyone interfaced a Bogen C100 paging system to either a SCCP ATA or IOS voice gateway? I have a Cisco2821 with the EVM module. The C100 has a terminal strip that supports 600 ohm. The only way I can make it work is to set the FXS port on the 2821 to goundstart. (If it is set to loopstart, it goes offhook when you interface the C100 to the FXS port.) However with groundstart, I get a lot of crackling noise....but only when someone is not speaking. While someone is speaking, it is clear.

I know the C100 is a common paging system and I just wanted to see if anyone had any ideas. Below is the show voice port for the 2821 while the pager is active:

Foreign Exchange Station 2/0/1 Slot is 2, Sub-unit is 0, Port is 1

Type of VoicePort is FXS

Operation State is UP

Administrative State is UP

The Last Interface Down Failure Cause is Administrative Shutdown

Description is not set

Noise Regeneration is enabled

Non Linear Processing is enabled

Non Linear Mute is disabled

Non Linear Threshold is -21 dB

Music On Hold Threshold is Set to -70 dBm

In Gain is Set to 0 dB

Out Attenuation is Set to 3 dB

Echo Cancellation is enabled

Echo Cancellation NLP mute is disabled

Echo Cancellation NLP threshold is -21 dB

Echo Cancel Coverage is set to 64 ms

Echo Cancel worst case ERL is set to 6 dB

Playout-delay Mode is set to adaptive

Playout-delay Nominal is set to 60 ms

Playout-delay Maximum is set to 250 ms

Playout-delay Minimum mode is set to default, value 40 ms

Playout-delay Fax is set to 300 ms

Connection Mode is normal

Connection Number is not set

Initial Time Out is set to 10 s

Interdigit Time Out is set to 10 s

Call Disconnect Time Out is set to 60 s

Supervisory Disconnect Time Out is set to 750 ms

Ringing Time Out is set to 180 s

Wait Release Time Out is set to 30 s

Companding Type is u-law

Region Tone is set for US

Analog Info Follows:

Currently processing Voice

Maintenance Mode Set to None (not in mtc mode)

Number of signaling protocol errors are 0

Impedance is set to 600r Ohm

Station name Test Router, Station number 80025198

Translation profile (Incoming):

Translation profile (Outgoing):

Voice card specific Info Follows:

Signal Type is groundStart

Ring Frequency is 25 Hz

Hook Status is Off Hook

Ring Active Status is inactive

Ring Ground Status is active

Tip Ground Status is active

Digit Duration Timing is set to 100 ms

InterDigit Duration Timing is set to 100 ms

Hookflash-in Timing is set to max=1000 ms, min=150 ms

Hookflash-out Timing is set to 400 ms

No disconnect acknowledge

Ring Cadence is defined by CPTone Selection

Ring Cadence are [20 40] * 100 msec

Ringer Equivalence Number is set to 1

[shane.orr · Accepted solution]

I have not interfaced to the exact Bogen model C100 but I have interfaced a wide combination of random amplifiers as well as a variety of Bogen Products to Cisco Products including SCCP ATA, FXS, FXO, and VG224 with Bogen products like the TPU-XXX Amplifier which does other things besides just amplifying as well as other Bogen products.

The key part you are missing is you need a TAMB which is a Bogen part number that gets plugged inline between your FXS or ATA and your amplifier. It will handle the answering and terminating the call when paging and convert it to a 600 ohm output that the amplifier is expecting.

As long as you are using FXS or ATA (which would be known as station port if you are talking to Bogen Tech Support) you do not need a power supply for the TAMB. If you are using FXO to connect to the TAMB you would need a power supply.

Bogen Tech Support is pretty good and can verify this with them if you like. You just need to let them know you want to interface a 90V Station Port to the C10 and they should tell you the same thing - TAMB