I have a customer that has a Cisco CM in 1 location and we want to put an IP Office in another using VOIP. They currently have a T1 between the 2 sites and are using Cisco phones at site 2. I know that I can connect the 2 via the T1 as a Tie line but want to do it using an h.323 trunk. I have all the docs I need for the IP Office config but do not know what has to be done in the cisco switch and if it is at all possible to do this. Has anyone done this?
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VOIP to Cisco CM
- Thread starter dhridah
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I have conmfigured an IPO VoIP trunk to a Cisico Call manager a few times. Some teething problem but works well.
The one problem you will come into is short codes. H323 is not like PSTN the call manager likes all of your RAS code and phone number to be dialed in one string. When creating you shortcodes and numbers to be placed onto the call manager for routing make sure you make use of the X in the short code so the IPO does not process the short code untill of of the X's have been filled in the code.
As far as configuring the Cisco you set it up as a standard VOIP interface with RAS.
The one problem you will come into is short codes. H323 is not like PSTN the call manager likes all of your RAS code and phone number to be dialed in one string. When creating you shortcodes and numbers to be placed onto the call manager for routing make sure you make use of the X in the short code so the IPO does not process the short code untill of of the X's have been filled in the code.
As far as configuring the Cisco you set it up as a standard VOIP interface with RAS.
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