07-02-2008 10:15 AM - edited 03-15-2019 11:42 AM
What are the advantages/Disvantages of having MGCP configured compared to H323. How difficult would it be to convert?
07-02-2008 10:27 AM
we already have a doc on that:
MGCP and H.323 Voice Gateway Protocol Comparison
http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a00806fedbe.shtml
MGCP is easier to configure but has limitations because CCM takes all decisions and only works on DNIS.
H323 requires more configuration because of dial-peers but work with ANI, DNIS and redirect number. you have a lot more control.
it's really not that hard to convert between them, a GW can have both at the same time if you want to handle a PRI with MGCP and other with H323
HTH
javalenc
if this helps, please rate
07-02-2008 10:32 AM
If MGCP is configured on the CM what function does the publisher have in the operation. Also, where can I find information on how to configure H323 on the gw?
07-02-2008 10:35 AM
CM takes all decisions of routing, MGCP is master-slave, H323 is peer to peer. have you gone thru the link? that is explained there
Cisco IOS H.323 Gateway Configuration for Use with Cisco CallManager
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080094636.shtml
Cisco IOS H.323 Configuration Guide
Dial Peer Configuration on Voice Gateway Routers
http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/dial_peer/dpeer_c.html
more links are available if you search H323 on CCO.
HTH
javalenc
if this helps, please rate
07-02-2008 10:44 AM
thanks
05-11-2011 10:40 AM
Q is this a correct statement
The main reason I would use MGCP over h.323 is for failover. If you are using a h.323 gateway and your primary callmanager goes down the calls will be dropped. With mgcp the gateway calls will be failed over to the secondary callmanager and the calls will stay up.
According to H.323 gateway confg
There is 2 VOIP statements apply with a
Session target ipv4: Primary Call manager IP address
And Subscriber IP address
Can you explain?
Thx
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