Asterisk support the following trunk type:
We will discuss SIP trunk configuration between Asterisk & CUCM.IAX trunk is used between two Asterisk PBX, we will discuss on the other trunk type later.
CUCM supports four trunk type:
1.H.225 trunk (Gatekeeper controlled)
2.Inters cluster trunk (Gatekeeper controlled)
3.Inters cluster trunk (Gatekeeper controlled)
We will discuss on SIP trunk configuration both on asterisk & cucm side.
From the CUCM side make suure dtmf methods is set to rfc 2833 .Before creating configuration part in CUCM make sure to create Non secure security profile & transport type to set UDP
IN both CUCM & Asterisk you need to create route pattern and select the appropriate trunk.
We will discuss on some advance feature on asterisk.