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Cisco Systems, Inc. > 
Item#: N82E16833124239

Cisco Small Business SPA3102 Voice Gateway with Router

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  • 2 100baseT RJ-45 Ethernet Port (IEEE 802.3) -- 1 WAN, 1 LAN
  • 1 RJ-11 FXS Phone Ports - For Analog Circuit Telephone Device (Tip/Ring)
  • 1 RJ-11 FXO Phone Ports - For a Telco or PBX Connection
  • Wired VoIP

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Cisco Systems, Inc. SPA3102


Cisco Small Business


Wired VoIP


Password Protected System Reset to Factory Default
Password Protected Admin and User Access Authority
HTTPS with Factory Installed Client Certificate
HTTP Digest - Encrypted Authentication via MD5 (RFC 1321)
Up to 256-bit AES Encryption
2 100baseT RJ-45 Ethernet Port (IEEE 802.3) -- 1 WAN, 1 LAN
1 RJ-11 FXS Phone Ports - For Analog Circuit Telephone Device (Tip/Ring)
1 RJ-11 FXO Phone Ports - For a Telco or PBX Connection
Power, Internet, Phone 1, Phone 2
DC Input Voltage: +5 VDC at 2.0 A Max.
Power Consumption: 5 Watts
Switching Type (100-240v) Automatic
Power Adapter: 100-240v - 50-60Hz (26-34VA) AC Input
4.0" x 4.0" x 1.1"
5.1 oz.


Data Networking:
MAC Address (IEEE 802.3)
IPv4 - Internet Protocol v4 (RFC 791) upgradeable to v6 (RFC 1883)
ARP - Address Resolution Protocol
DNS - A Record (RFC 1706), SRV Record (RFC 2782)
DHCP Client - Dynamic Host Configuration Protocol (RFC 2131)
DHCP Server - Dynamic Host Configuration Protocol (RFC 2131)
PPoE Client - Point to Point Protocol over Ethernet (RFC 2516)
ICMP - Internet Control Message Protocol (RFC792)
TCP - Transmission Control Protocol (RFC793)
UDP - User Datagram Protocol (RFC768)
RTP - Real Time Protocol (RFC 1889) (RFC 1890)
RTCP - Real Time Control Protocol (RFC 1889)
DiffServ (RFC 2475), Type of Service - TOS (RFC 791/1349)
VLAN Tagging - 802.1p
SNTP - Simple Network Time Protocol (RFC 2030)
Upload Data Rate Limiting - Static and Automatic
QoS - Voice Packet Prioritization over Other Packet Types
Router or Bridge Mode of Operation
MAC Address Cloning
Port Forwarding

Voice Gateway:
SIPv2: Session Initiation Protocol v2 (RFC 3261, 3262, 3263, 3264)
SIP Proxy Redundancy - Dynamic via DNS SRV, A Records
Re-registration with Primary SIP Proxy Server
SIP Support in Network Address Translation Networks - NAT (incl. STUN)
Secure (Encrypted) Calling via Pre-Standard Implementation of Secure RTP
Codec Name Assignment

Fax Capability:
Fax Tone Detection and Pass-Through (Using G.711)
Fax Pass-Though - Using G.711
DTMF: In-band & Out-of-band (RFC 2833) (SIP Info)
Flexible Dial Plan Support with Interdigit Timers and IP Dialing
Call Progress Tone Generation
Jitter Buffer - Adaptive
Frame Loss Concealment
Full Duplex Audio
Echo Cancellation (G.165/G.168)
VAD - Voice Activity Detection with Silence Suppression
Attenuation / Gain Adjustments
Flash Hook Timer
MWI - Message Waiting Indicator Tones

Many specifications are programmable within a defined range or list of options. Please
see the SPA Administration Guide for details. The configuration profile is uploaded to
the SPA3102 at the time of provision


Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the Cisco Systems, Inc. SPA3102

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  • Peter O.
  • 5/13/2014 11:01:30 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsIntegrated with Asterisk

Pros: I as able to integrate this FXO/FXS module into my home asterisk server very easily.

I was pleasantly surprised to see that it actually pushed the caller ID info to the analog phones without any extra configuration. I guess that's the power of voip/Asterisk.

Cons: Analog ringgers sound a little funny. Maybe I'm trying to ring too many phones simultaneously. Not really a con, just an observation.

1 out of 1 people found this review helpful. Did you? Yes No

  • Carl C.
  • 5/31/2013 3:38:42 PM
  • Ownership: more than 1 year

5 out of 5 eggsWorld Class Reliability

Pros: The OS is feature rich. You control whatever you want. One good feature is that the lights on the device will always let you know if you have up-link to the internet or not. In other words, if your modem is not getting internet signal, the lights will be off on the VoIP line. We use the router on the device to provide DCHP to our Buffalo N wireless router.

Cons: None

Other Thoughts: These devices are very reliable and always ready for action. Phone calls are always crystal clear, just like a land line. Don't believe the hype on other reviews. If you set the perimeters in the settings of the device properly, the device will work like a charm. If you mess the settings up, good luck...

1 out of 1 people found this review helpful. Did you? Yes No

  • Dmitri P.
  • 3/8/2013 10:04:36 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsNice ATA

Pros: Does the job well. Nice build quality. Lots of manual customization options (though this could be a CON, depends how you look at it). Tons of resources online on getting this to work.

Cons: When placing calls from with line1 or SIP phone to PSTN, echo may be present for the local party (the remote party seems fine). Took quite a bit of fine tuning to get it to a reasonable level where it doesn't bother me.

Upgrading firmware without a PC could be tricky (though there are ways to do it). Wish there was an application for MAC, like there is one for Windows.

Other Thoughts: Has worked well so far, no reboots, no crashes. Does get a little warm, but should not be a problem. I'm running this with Asterisk setup.

Definitely requires a person either knowing what they're doing, or be open to do researching online for getting this to work as needed.

1 out of 1 people found this review helpful. Did you? Yes No

1 out of 5 eggsDon't BUY.

Pros: Easy configuration
Works very well until...

Cons: you call a cell phone or an automated machine
they can't hear anything from you.

Takes long before you can get the right information on how to configure it.

Tried to check support on website but couldnt find any help. You actually have to PAY to get some support

Avoid this and get yourself something where they give support!!

0 out of 2 people found this review helpful. Did you? Yes No

1 out of 5 eggsPoor router performance

Pros: Works well (for ATA purpose) once you have upgraded the firmware.

Cons: Extremly poor router

Other Thoughts: Do not buy this item if you want to use it as a router. Extremly poor performances. My 20Mbps connection drop to 7 Mbps when i connect it to my computer, and the SPA keep rebooting as soon as it's stressed a bit (if you use Torrents client for example).

Had issues with stocks firmware (i was able to call & receive calls, i was able to ear people, but nobody was able to ear me). But once i've upgraded the firmware, it worked well.

1 out of 4 people found this review helpful. Did you? Yes No

  • Ronald H.
  • 5/14/2011 12:52:02 PM
  • Ownership: 1 month to 1 year

5 out of 5 eggsEasy VOIP!

Pros: Easy VOIP set-up, even for someone inexperienced.

Cons: Requires connection to a computer to set it up. However, after configuring it, it can be disconnected from the computer.

2 out of 2 people found this review helpful. Did you? Yes No

  • Evan S.
  • 11/17/2010 10:48:41 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSPA3102

Pros: Small device, works perfectly with my 3cx IP PBX.

Cons: Doesn't always detect the other party hanging up, but not a big deal, as you can always set a timeout for when it doesn't detect any voices on the line.

Other Thoughts: Pretty straightforward to setup, just take it one setting at a time :).

Manufacturer Response:

Hi Mervin,

Thank you for the feedback. We appreciate your comments, and are happy to hear you are satisfied with the SPA3102!


Cisco Small Business Team

3 out of 3 people found this review helpful. Did you? Yes No

  • Lorin L.
  • 1/18/2010 7:59:44 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsGreat concept/ Bad unit

Pros: Excellent features. The fact that I could use my land line and route VOIP calls was the key factor when I considered buying the SPA 3102.
Plenty rules to "play" with.

Cons: When it arrived, I powered up my unit, http in, change the default IP so that it matches my network IP range, set it to static IP,disabled the DHCP server, applied changes and the unit power cycled. And that's it. That's where it ended for me.
What ever I tried... nothing brought it back to life.I could not use the http interface, I could not use the phone to reset it to factory defaults,I couldn't use the firmware upgrade application. I was hoping that I'll be able to flush the memory and rewrite the firmware.
Did a port scan and there was no acknowledgment nor a reply from any of the ports.

Other Thoughts: It was so sad when I had to request an RMA for this unit.
Just my kind of luck.

Manufacturer Response:

Hi Lorin,
We’re sorry to hear about your experience. You did all the right things. There is one more thing you could have tried in resetting the SPA3102 to the factory default settings using the Interactive Voice Response (IVR):

- Plug a phone into the Phone 1 port
- Press “****”
- Enter “73738,” then “#”
- Press “1” to confirm

This sequence can be found in the documentation, which is available here: Small Business Support ( and the Small Business Support Community ( also are good resources for getting help when you need it.

Cisco Small Business Team

3 out of 6 people found this review helpful. Did you? Yes No

  • Seann C.
  • 5/20/2009 12:44:42 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Cheap PTSN Gateway

Pros: Very small and simple to wire up, and a huge amount of resources online for getting this to work with Asterisk, and simple to modify to use with other PBX systems. Good sound quality and reliable on the network. Helps me filter out annoyances even without a PBX.

Cons: The included documentation isn't detailed enough for any real use out of the box, but a little bit of googling helps with that. No mention in the documentation on how to reset the device if you lock yourself out.

Other Thoughts: The unit does get warm depending on the environment. This unit also is a re-branded Sipura device but outside of the name, online documentation matches for both devices and between the two brand names it creates a good documentation base. All in all, it is well worth the purchase.

5 out of 5 people found this review helpful. Did you? Yes No

  • Anonymous
  • 4/23/2009 3:48:07 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks as expected

Pros: Solid and reliable with tons of features. In fact, the feature set can be a bit bewildering.

Cons: The only con is the price if what you really want is something akin to the Linksys PAP2T. For a basic VOIP ATA adapter, this unit is a bit of an overkill.

Other Thoughts: I use this for connecting a fax machine to a VOIP service.

5 out of 5 people found this review helpful. Did you? Yes No

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