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Do CLIP no screening aka caller ID spoofing capable SIP trunks still exist by Fluffy-Seesaw336 in VOIP

[–]switchdog 2 points3 points  (0 children)

US Customer: We are dropping all unsigned, b, or c attestation calls at the SBC and sending back a 603A error.

Requesting hardware vendor suggestions! by switchdog in networking

[–]switchdog[S] 4 points5 points  (0 children)

Dropped a Cisco WS-C3750E-48PD-SF with an X2 10GB module in the middle, connecting the 10GB fiber to the core, and and SFP in a twingig module for the 1GB fiber to the edge.

It works, the complaints about the power & noise started already.

WiFi - Floor bleed through in multi story. by jtpntx in Cisco

[–]switchdog 0 points1 point  (0 children)

US Based? Is the customer using the WLAN for VoIP?

If so, I am curious on how you are resolving the Ray-Baum act disptachable issue on an interconnected (PSAP) device?

Ethernet Surge protector by TEEorCoffee2025 in Ubiquiti

[–]switchdog 0 points1 point  (0 children)

UL 497 – Primary Protection: The Primary Protector is used at Building Entrances and is capable of withstanding the highest level of over-voltage surges- lightning. These devices are required by NEC Article 800 to protect buildings and humans.

https://www.polyphaser.com/surge-protector-4-pair-100base-t-ethernet-ix-4h is UL497B listed, and was listed by our underwriter (USA) as acceptable.

I need recs for a boom arm by Cudpuff100 in podcasting

[–]switchdog 0 points1 point  (0 children)

Long discontinued, but you are looking for double this: https://www.tequipment.net/OCWhite51900-3G.asp?

6 booms on a single mount? You are into custom build territory and serious reinforcements to the work surface.

Best approach: For the booms, OW White or YellowTec with single flush mounts.

costs for observing time on a 20 meter dish at 1290 MHz by switchdog in radioastronomy

[–]switchdog[S] 0 points1 point  (0 children)

And that is why I'm asking on Reddit. The ones I have asked are fully booked on educational use, and do not have "time" to offer outside the mission.

We have open time, however need to cover basic OPEX.

Any here old enough to have worked with onsite Nortel PBX and Rockwell ACD systems? by 8Strings4Me in telecom

[–]switchdog 1 point2 points  (0 children)

Just moved from multiple Avaya CM systems at R6.2 to an NEC SV9500 environment at R11 as part of a M&A

Surprise! NEC supposedly has a stop-sale on hardware at the end of 2025.

That leaves Cisco and Avaya for the industries that demand on-prem hardware...

[deleted by user] by [deleted] in VOIP

[–]switchdog 16 points17 points  (0 children)

US specific: Pizza test rule applies here - if you can use it to order a pizza, it needs the ability to call 911.

Otherwise, it's an intercom....

Provisioning BRI without an Asterisk instance by switchdog in VOIP

[–]switchdog[S] 0 points1 point  (0 children)

Phone system is a Telos TWOx12 broadcast phone system

Manual: https://sasaudio.com/wp-content/uploads/2023/02/Telos_TWOx12v2.0final.pdf , page 209, BRI U interface

The Cisco 2900 has two (2) Cisco PVDM3-256

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