- 2.4 GHz frequency-hopping spread spectrum technology
- Expandable to 4 handsets
- Voice operated commands, voice dial, voice announced caller ID
- Integrated answering system
- Full-duplex speakerphone in handset
Technical Details
Product Details
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Product Description
Amazon.com Product Description
Offering a range of expandable features in a small, sleek package, the Siemens SL3501 includes a digital answering system operated solely from the handset. Providing 30 minutes of talk time and protection against power failure, the tapeless system includes several pre-recorded messages, as well as options for recording memos to other household members.
The five-line LCD screen on the handset supplies access to the system, as well as displaying up to 200 calls received via caller ID. Each call may be returned at the touch of a button, while voice-activated speed dial presets provide instant access to 10 of your most frequently dialed numbers.
A headset jack and belt clip are built-in for hands-free operation, and features like 10 ringer melodies, new call alert, alarm call, and date reminder voice-announced caller ID supply the latest options for total customization. Siemens includes a one-year warranty covering parts and service.
Customer Reviews
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Most Helpful Customer Reviews
42 of 42 people found the following review helpful:
4.0 out of 5 stars
Excellent full featured phone with some usability problems,
By Greg in Bothell (Bothell, WA USA) - See all my reviews
This review is from: Siemens GigaVoice SL3501 Micro 2.4 GHz DSS Expandable Cordless Phone with Answering System and Caller ID (Office Product)
The SL3501 is the upgrade to the Siemens 4215 series and carries over most of the 42XX series characteristics. The upgrade solves some of the 4215 issues but gives it the one thing it really didn't need, a smaller handset. I've owned the 4215 for about 2 years. When the base died, I started shopping for another phone. The T3501 was attractive because I could use my two 4200 handsets. However there were a lot of things I didn't like about the 4215, so I shopped around purchasing a total 3 different phones before coming back to the Siemens.Here's how the 4215 compares to the SL3501: Sound quality - The 4200 handsets have excellent sound quality, perhaps too good. Siemens choose not aggressively filter out the higher frequency range, so you clearly hear the background hiss inherent in any wireless device. They have nicely corrected this in the SL30 (the included handset). You can hear some background noise, but not a lot. They had to sacrifice some high frequency but the result is a more balanced sound with less noise. A worthy trade off. Head set jack - An inexcusable omission on the 4200 has been corrected in the SL30. However, it's a proprietary jack for Siemens headsets only. They soften the blow by including an ear bud type headset. For around the house, I much prefer the full size headset with a boom mic. The included headset is functional but I could never get it loud enough or find a comfortable spot in my ear. Answering Machine Voice Quality - The 4215 answering machine has some of the worst sound quality I have ever heard. There are 2 quality settings, both are pretty bad. The SL3501 improves the quality, but only a little bit. Siemens still lags behind Panasonic and others in this area. Easy Access to volume - To access the volume control, it's a multi key stroke operation that requires you view the display. This makes it pretty impractical to use while on a call. Sadly this is just the same on the SL30. Two small buttons on the side of the phone would have solved this, URGH! Base, what Base? - The 4215 base was already pretty small and discrete. Plus it doubled as handset charger. Since accessing the base was all performed through the hand set, there were no controls on the base. In the SL3501 they have taken this one step further and separated the base from the handset charger. Like the 4215 there are no controls on the base (expect page and handset registration) so the base can be placed discretely out of site, or centrally located for better reception. While this is nice, it contrasts with many other phones where the base serves and primary location for access to messages as well as serving as a speakerphone. The Panasonic 5.8 has a particularly nice base which really adds a lot to their over all package. The Competition As I mentioned, I tested 3 other phones which were the Panasonic 5.8ghz, AT&T 5.8, Motorola 2ghz. Of these, the Panasonic as was the clear winner. The AT&T was nice, but there was bad echo on all calls. Plus I could never get the speaker quite loud enough. The Motorola was not even close. The sound quality was horrible and the directory could not easily be transferred between phones. Comparing the Panasonic to the SL3501 Sound - The Panasonic has exceptional sound. Like the SL30 the higher frequencies are trimmed back to cut the background noise. However it's more noticeable on the Panasonic. To my ear, the Siemens does a better job handling the hiss, while still retaining some higher frequency. But I'd have to give the Panasonic the nod for overall sound quality which is richer and fuller. The larger handset probably helps this by giving the speaker some "cabinet space". Speaker Phone - Sorry, but the SL30 speaker phone is not that good. It's not very loud and gets choppy when there's ambient noise in the room. The speaker phone on the 4200 is better. The Panasonic's speaker phone is still better yet. It's loud and clear. Access to the Dialing Directory On the Panasonic you access the directory with omni dial, which requires 2 separate steps (down, then right). Most of the time, I got it wrong resulting in 5-8 button presses just to get to the directory. On the Siemens its one button and you are there, much easier! Voice Messages and Caller ID On the Siemens, there is a small red flashing LED that signals either messages or calls have been received. You access the call log and the messages with one button. Reviewing the messages and calls clears the flashing LED for all phones. On the Panasonic, the messages are indicated by a small flashing number on the display and a flashing LED on the base. If you are only looking at the handset you could miss it. The caller ID calls are all handled individually by the base and the handsets. If you answer the call on one handset, all the others mark it as "missed call". You have to clear the "missed" calls on all the handsets individually otherwise each handset always indicates that new caller ID calls have come in, even if they were answered or cleared on another handset. This makes the "new call" indication pretty much useless. Also, the Panasonic doesn't lookup the caller ID numbers to the names listed in the directory. The Siemens does this which is particularly useful for cellular callers where the name is listed as "wireless". Summary The SL3501 is a nice upgrade to the 4215. Many will find the handset too small, but fully functional. It has great sound, rich features and performs well. It has excellent integration with caller ID and the messages making more a phone "system" rather than a phone/answering machine combo. Sadly the German engineers didn't fix the 4200's usability issues and still haven't added a standard headset jack.
3 of 3 people found the following review helpful:
4.0 out of 5 stars
Great phone system for the houseshold,
By Mike in Brentwood (LOS ANGELES (BRENTWOOD), CA United States) - See all my reviews
This review is from: Siemens GigaVoice SL3501 Micro 2.4 GHz DSS Expandable Cordless Phone with Answering System and Caller ID (Office Product)
This is a great phone system for the household. The two-way speakerphone is of a superlative quality, the included headset makes for a nice handsfree experience when walking around, and the Direct Inward Dialing (DID) feature is great for callers to locate the exact person they are trying to reach in the household. The only thing I don't like is that if you have call waiting, you must hit the "MEM" button to switch back and forth between calls, rather than hitting the "Talk" button. This seems a bit odd to me, and this information is nowhere to be found in the owner's manual...I had to call Customer Service to find out about this.
2 of 2 people found the following review helpful:
5.0 out of 5 stars
Best phone for the money,
By
This review is from: Siemens GigaVoice SL3501 Micro 2.4 GHz DSS Expandable Cordless Phone with Answering System and Caller ID (Office Product)
Great phone for the money. Big sound improvements over the old 4100 series, very easy menu and phonebook management if one is used to cell phones. I use Siemens triband cell phone and for me switch to Gigaset was seamless. Siemens does have more superior design and user interface than Panasonic. The rest of features are a matter of taste and personal preferences, such as sound which is very natural in Siemens, cell phone like operations and size. Stay away from 3501 if you are used holding your phone between your head and a shoulder. Also, do not pay more than 99 dollars as even Siemens website sells it in US for under a hundred.
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