sipEnforceOfferAnswerModel
MX-SIP-EXPERIMENTAL-MIB ·
.1.3.6.1.4.1.4935.99.10.1.80
Object
Determines whether the unit requires strict adherence to RFC 3264
from the peer when negotiating capabilities for the establishment
of a media session.
When enabled, the following guidelines from the Offer-Answer Model
must be strictly followed. An answer must:
- Include at least one codec from the list that the unit sent in the offer;
- Avoid adding extra codecs that were not present in the offer;
- Contain the same number of media lines that the unit put in its offer.
Otherwise, the answer is rejected and the unit ends the call.
When disabled, then the peer can freely:
- Send back a brand new list of codecs or add new ones to the offered list;
- Add media lines AFTER the ones found in the offer.
As long as at least one codec sent back is supported by the unit, the call
is allowed to go on. Any media lines added by the peer
is simply ignored.
The sipAllowMediaReactivationInAnswerEnable and
sipAllowAudioAndImageNegotiationEnable variables allow to enable or disable
other deviations from the Offer/Answer model.
Context
- MIB
- MX-SIP-EXPERIMENTAL-MIB
- OID
.1.3.6.1.4.1.4935.99.10.1.80- Type
- scalar
- Access
- readwrite
- Status
- current
- Parent
- sipExperimentalMIBObjects
- Siblings
- 7
Values & Constraints
Type Values
0 | disable |
1 | enable |
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| sipRtpUdpChecksumEnable Enables/disables the UDP checksum for RTP packets. UDP
checksum is disabled by default to gain performance.
Enable: UDP checksum will be calculated for each RTP
… | scalar | MX-TCMxEnableState | .1.3.6.1.4.1.4935.99.10.1.130 |
| sipUnregisteredPortBehavior This variable specifies whether a port should remain enabled or not when not
registered.
disablePort :
When an endpoint is not registered, it is disabled. This preven… | scalar | Enumeration | .1.3.6.1.4.1.4935.99.10.1.25 |
| sipOutboundProxyConfig This variable provisions the type of routing that the configured outbound proxy
does.
looseRouter :
This is the most current method for SIP routing, as per RFC3261, … | scalar | Enumeration | .1.3.6.1.4.1.4935.99.10.1.30 |
| sipNatCustom | node | - | .1.3.6.1.4.1.4935.99.10.1.5 |
| sipAllowMediaReactivationInAnswerEnable Determines the unit behaviour when receiving a SDP answer
activating a media that had been previously deactivated in the offer.
Enable: A media reactivated in an incomi… | scalar | MX-TCMxEnableState | .1.3.6.1.4.1.4935.99.10.1.85 |
| sipAllowAudioAndImageNegotiationEnable Determines the unit behaviour when offering media or answering
to a media offer with audio and image negotiation.
Enable: The unit offers audio and image media simultan… | scalar | MX-TCMxEnableState | .1.3.6.1.4.1.4935.99.10.1.90 |
| sipCodecOrderInAnswer Determines the unit behaviour when answering to a media offer.
localOrder: The codecs contained in the answer are
prioritized according to the configured preferred code… | scalar | Enumeration | .1.3.6.1.4.1.4935.99.10.1.95 |