Question about Siemens Gigaset SL30 Cordless Expansion Handset

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Adding new expansion handset

I have a siemens sl30 with 4 handsets. one of the handsets broke and i bought a replacement handset. i cannot get the new handset to work. it is not being recognized by the network and instead of giving a phone tone, just keeps flashing "searching" on the handset.

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Re: adding new expansion handset

You will need to register it to your base station before it will work. You do so by holding down the registration/page key on the bottom of your base for a couple of seconds, and then grab your SL30 and push Menu, scroll down to the option of Handset settings, press OK, then scroll to "registration" and push OK, select base station 1, press OK, then enter the default pin of 0000 and press ok. Repeat these steps if first not successful. You can download a manual for free on our website at

Posted on Feb 10, 2008

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Siemens Gigaset 4200 Cordless keep searching for base

The handset should be returned to the charging station, let it set for a few seconds. If this is a satellite phone, make sure the main phone "base unit" is connected to phone outlet and plugged in. After the phone has established its physical connection with the base again you can remove it and use it like normal.

May 18, 2012 | Siemens Gigaset 4200 Cordless Expansion...

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I have a Uniden DECT 6.0 phone set. I damaged one

On the base, open the menu and select Register Handset. The display should say Handset Registering.
On the handset you want to register, press and hold # until the handset display says Handset Registering (about 2 seconds).
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In about 30 seconds, the handset display should say Registration Complete. Press Talk/fl ash and make sure you get a dial tone.
you don't hear a dial tone
the display says Registration Failed --
Making sure the handset is fully charged, then start over at step 1.

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2 Answers


A search of Uniden support only said to call 1-800-297-1023 with handset registration issues. The rep picked up quickly and walked me through the reset procedure. Here it is step-by-step:

1. Remove battery
2. Hold down the * and # buttons and reinsert battery. You should hear a long beep. If not retry. (This is a bit awkward but hold the handset upside down and it's workable)
3. Screen will be blank. Immediately press the right soft menu button.
4. Screen will report that EEPROM is clearing and then state EEPROM Clear Ok
5. Remove battery (yes again)
6. Reinsert battery (this time there's no need to hold down any buttons)
7. Handset will reboot with Welcome screen and then state that phone must be registered (this is the status a handset should be in from the factory)
8. Place handset on base and it will register as normal

Aug 02, 2009 | Uniden DECT 6.0 Cordless Telephone...

1 Answer

Handset won't work

I went through this exercise with a Siemens Gigaset 8800. The solution is to DE-register the handset first. Then register it with your base. This function can likely be accessed in the handset menu. The phone you purchased is apparently still registered to the previous user's base.

May 23, 2009 | Siemens Gigaset 4200 Cordless Expansion...

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Gigaset 8800 PIN reset

  1. Turn the handset off by pressing and holding the PWR key.
  2. While holding down the keys 1, 4, and 7, turn the handset back on.
  3. It will display "Handset Service".
  4. While this message is displayed, type in the numbers 4 6 8 5 4 6 3 (the word "hotline") on the number pad.
  5. The phrase "Settings Reset to Default" for a second or two and the handset will power itself off.
Note: When you turn the handset back on, the handset PIN will be reset to 0000.

Dec 26, 2008 | Siemens Gigaset 8800 Cordless Expansion...

1 Answer

Adding a new handset

You need to register the new handset with the base.
In Global settings De-register the new handset then place it on the main base unit connected. It should then register.

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1 Answer

Merging 2 siemens gigaset 4215 systems (one base with 2 phones + 2 phones)

If you're trying to get 5 handsets to work with one base, it won't work. The 4215 can only handle 4 handsets, the base handset plus 3.

When I had to replace the base of my 4 handset system, the base handset still worked. Therefore I had an extra handset which couldn't be used. So I decided to buy another base. Now I have 6 handsets which can be grouped 4,2 or 3,3.

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New Expansion Handset refuses to register with the base

If im not misytaking the base has to be set up for another expansion too.

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