Goal (short description)
Setup SIP-H.323 translator and/or SIP/H.323 SBC (involved in sip to sip and h.323 to h.323 calls)
Applicability
Protocol translator and/or border gateway for SIP and H.323
Prerequisites (OS, dependencies on other software)
- Appropriate Cisco router with appropriate IOS. See datasheet for router type, memory and IOS requirements.
- Basic IOS configuration knowledge
- Router with configured network access
Configuration (OS agnostic)
Product page
Configuration guides
Call direction and tranlation section
voice service voip allow-connections h323 to h323 allow-connections h323 to sip allow-connections sip to h323 allow-connections sip to sip
Alow or ban directions you want to use.
Main protocol section
h323 call start interwork sip
Here can be set protocol parameters like slow start and fast start for H.323. Call start interwork allows translation between these modes. Protocol setting can changes for particular dial peer bey means of voice-class h323 commands
Codec class
voice class codec 200 codec preference 1 g711alaw codec preference 2 g711ulaw codec preference 3 gsmfr codec preference 4 g729r8
You can define sets of codecs with preferences and assign these sets to dial peers. Or you can directly assign codec in dial peer, but only one.
Dial peers
H.323 dial peer that uses RAS (configured gatekeeper).
dial-peer voice 1 voip destination-pattern 10......... voice-class codec 200 session target ras
SIP dial peer that uses configured sip-server.
dial-peer voice 211 voip destination-pattern 90........ voice-class codec 200 session protocol sipv2 session target sip-server
SIP UA setting
sip-ua nat symmetric role passive nat symmetric check-media-src sip-server dns:domain.dom
Here is defined sip server (used in dial peers) and various sip parameters.
OS specific help
N/A - There is only CISCO IOS