I added some additional info since the previous response gives you the required QOS settings
you not only providing QOS but also call Admission Control (CAC)
Also make sure that location are set right on your remote site for 2 call
and unlimited on you central site.
Refer to Unified CallManager Interactive Voice Network Configuration and Troubleshooting Case Study for requirements assumed by this series of interactive documents.
In order to configure CAC, complete these steps:
1. Configure Locations and Bandwidth
2. Configure an Alternative Automatic Rerouting (AAR) Group
3. Enable AAR in Unified CallManager
4. Configure AAR Calling Search Space on the IP Phones
5. Ensure that IP Phones Contain an External Phone Number Mask
Note: AAR uses the prefix configured under the AAR group and the external phone number mask of the destination phone in order to construct the full E164 number.
For example, if phone 1 (5005) calls remote phone 2 (4002), phone 1 uses prefix 91, as configured under the AAR group, and adds it to the mask for the remote phone, which is 9195014002. The number becomes 919195014002.
Make sure that you do not include the long distance digit (1) in the external phone number mask; otherwise, the number is included as part of the caller ID.
Configure Locations and Bandwidth
Configure locations and bandwith per remote location as described in this section.
1. Click System > Location > Add a New Location.
2. Configure the location as shown in this image:
This example uses the default location of None for the San Jose head office. The bandwidth for the head office is left at default and unlimited. For the remote location (RTP), this example configures a location Remote.
Note: This example configures a bandwidth of 48 kbps, which allows 2 x G.729 call over the WAN. This does not include Layer 2 overhead. For information on how different codec use different bandwidth values, refer to the Call Admission Control chapter of the Cisco Unified Communications SRND Based on Cisco Unified CallManager 4.x.
Configure an Alternative Automatic Rerouting (AAR) Group
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...