Re: can I use IP phone without callmanager?

x-guo · ‎01-12-2003

we only need two phones,can I using them without callmanager? can the cisco IP phones communicate point-to-point in such situation?

aderbent · ‎01-12-2003

Hi,

It is possible using SRST.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_feature_guide_book09186a0080110b96.html

Thanks

Yigit Zorlu

yzorlu@tepum.com.tr

lopezasp · ‎01-13-2003

Using SRST you will also need a Call Manager. SRST works only if your call manager is down and you cannot use your router with SRST to become your stand alone PBX.

Thanks

oconnost · ‎01-13-2003

You will need CallManager to register your Cisco IP Phones. Once, IP connectivity fails to CallManager, then SRST can be used.

jmessina · ‎01-13-2003

maybe another option

http://www.cisco.com/en/US/products/sw/voicesw/ps4625/products_feature_guides_list.html

aderbent · ‎01-14-2003

Also there is a software tool that acts like callmanager. It comes with a CD when you buy Cisco Press IP Phone Services book. If you can t find any ccm for initial registration it can be a solution for you.

It supports only 2 ip phones though.

Yigit Zorlu

yzorlu@tepum.com.tr

vassatrian · ‎01-14-2003

This is CISCO IOS Telephony Service Version 2.01: another words small PABX running off the CISCO router.

http://www.cisco.com/en/US/products/sw/voicesw/ps4625/products_feature_guide09186a0080128fb3.html

nfracassi · ‎02-06-2003

Hi,

I think what is best for you is IOS Telephony Service, a featureset of IOS which makes the router become a small but advanced PBX up to 24 / 48 users with all the benefits of IP Telephony.

ITS is now in controlled release so I think you should ask Cisco before using or selling it.

We've been using it for a long time because in Italy it is very interesting for very small companies and for remote sites and we have a great experience with it.

We've also developed several applications which work with ITS (which does not have many native features out of all standard telephony features) and add a great value to Cisco product.

Best regards

Nicola

dobri · ‎02-06-2003

If you are only going to use two IP phones, you don't necesserily need Cisco CallManager. Probably the easiest way to set them up is:

1. Upgrade their firmware to support SIP. See

http://www.cisco.com/warp/public/788/voip/handset_to_sip.shtml

(URL may wrap)

2. Setup each phone with the IP address of its counterpart as its SIP proxy server.

3. Enjoy!

This won't work once you add a third phone...

Dobromir

kgroves42 · ‎02-06-2003

Speaking of SIP

you might want to check this out

http://www.pulver.com/fwd/fwd30news.html

Ken