Thank you to everyone who joined the Sangoma Education Series Webinar: Cost Effective Tapping and Call Recording using the Sangoma T116 on April 22, 2013. Below is the Q&A key from the English session @ 11:00AM EST as presented by Jeff Dworking and Frederic Dickey. Please review the answers and don’t hesitate to let us know if you have further questions or comments.
Sangoma Education Series Webinar:
Cost Effective Tapping and Call Recording using the Sangoma T116
Q: can we use this tapper between BTS and BSC? and get log from Abis interface?
A: Yes. The A-bis interface signaling channels would be defined as HDLC channels in our boards. Your application could then analyze the content of the signaling (we do not provide this part, as we mentioned we provide the raw data to the application.)
Q: So we should use for each E1 link one tapping boards what is solution for multi E1 links is there any merging system ?
A: You need to use 1 tapping box for each T1 or E1 you want to monitor.
Q: Windows how to use with this board
A: We have a Windows driver for the T116. Customers typically use Windows with our TDM APIs. Please go to wiki.sangoma.com for more details.
Q: What’s the servers specs required for large deployment
A: We have benchmarked with a quad core machine (i7) up to 6 T116 in one system.
Q: For windows based logger do we need to use nbe
A: No. NBE is a VoIP gateway, it is not meant to be a logger application.
Q: What was the server specs on which the load test was done for 116
A: I7 machine with 4 GB RAM.
Q: Do we need echo cancellation boards
A: Not required as you are using the boards in Receive mode only.
A: I do not understand the question. SBCs could be used for recording and logging buy doing sip forking to a SIP based recording device.
Q: Also on the 3rd case the hardware cost is half ?? No of e1
A: Yes. That is the reason for the T116. It can be set up in Rx mode only.
Q: could it provide again wiki link?
A: Here is wiki page for the T116: http://wiki.sangoma.com/t116-16-port-t1-e1-j1-tapping-board
Q: how is synchronize each RX time slots on each frame? Have to set separated setting of clock resource on each port?
A: No need for separate clocking.
Q: Can you confirm that TAP box will not cause any degradation ex. signal, red alarm on ss7 interconnection using cisco access server?
A: Yes. The tapping box has built in high impedance to do just this.
Q: You plan to record other sources than E1/T1/J1 ?
Q: digital PBX lines? like for system phones?
Q: in ALU-> DR-Link or AES Avaya Server
A: In this case, I believe you want to trigger the recording from the proprietary CTI links available on PBXs. Every vendor provides their own interfaces and APIs. We do not provide direct interfaces to these. You need to develop these yourself.
Q: where can i find the sample code for tapping
A: Please visit our wiki.sangoma.com pages for more information.
Q: Thanks it was well presented
A: You’re welcome. We hope to see you at the next webinar.
Q: What is the reistance in the tapping box
A: The resistor for high impedance is 1 KΩ (Kilo ohms).
Q: Does Sangoma provide the pinouts for the cabling for the T116
A: Yes. This is on our wiki.sangoma.com site.
Q: Can you use 1 x A102 or do you have to use 2 x A101
A: It is not cost effective to use 2 x A101, plus it does not really work with our drivers.
Q: If recording conversations, what would you use to do the recording? Asterisk MixMonitor?
A: This application is for PBX only. You need to write an application that will merge the 2 receive pairs into a single conversation.
Q: Hi, The RX side Card is a 1 E1 card or a Double E1 card?
A: For each E1 you need to monitor, you will need to terminate on 2 E1 ports. So at minimum, you need an A102.
Q: How & where will get help guide?
Q: please i need to know why sagoma still using an ID power connector from rear at sangoma A200 and A400 series?? I hope it will be sata power connector as all the server now use sata powers
A: We use molex.
Q: Want to know how effective is solution and how live call can be monitored
A: We provide the means for interconnection, not the final recording platform. How effective a solution is in not based on Sangoma, it is based on the application developer that uses our boards.
Please be reminded that we have other webinar sessions scheduled on many Sangoma solutions. Take advantage of these educational and product series resources by signing up for an upcoming session. View the complete webinar schedule on the Sangoma Training webpage.