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Call Server Configuration
Polycom, Inc. 253
See also:
Dial Rules
The Default Dial Plan and Suggestions for Modifications
Resolve to external SIP peer Checks the domain of the dial string against all of the rule’s selected peers, looking
for a peer proxy responsible for that domain. If the dial string matches the domain
of one of the selected SIP peers, this rule will either successfully route the call, or
the call will be aborted; no subsequent dial rules will be attempted.
After selecting this action for a rule, select a Routing policy. The policy affects the
way the system resolves dial strings to SIP peers:
• All in parallel (forking)
The system uses all SIP peers simultaneously to try to resolve the dial string.
• Weighted round-robin
You can assign each SIP peer a weight in the range 1-100, with a higher weight
giving a SIP peer higher priority; the system tries each SIP peer sequentially
according to the SIP peer’s assigned weight. You can assign a SIP peer
different weights in different dial rules.
After choosing a routing policy, move the SIP peers to which the rule applies from
the Available SIP peers box to the Selected SIP peers box. If the Weighted
round-robin routing policy is selected, choose a weight for the selected SIP peer
using the Edit weight button.
Note: This action employs the H.323<->SIP gateway function if applicable.
Resolve to external
gatekeeper
If the dial string appears to be an H.323 alias, simultaneously sends LRQ
messages to all of the rule’s selected gatekeepers.
After selecting this action for a rule, move the gatekeepers to which the rule applies
from the Available gatekeepers box to the Selected gatekeepers box.
Note: This action employs the H.323<->SIP gateway function if applicable.
Resolve to external address Determines if the dial string is a well-formed instance of an external address type to
which the rule applies, and if so, uses the resolution procedures specified in the
applicable standard for that address type.
After selecting this action for a rule, select the address type or types to which the
rule applies. The address types and applicable standards used to resolve them
are:
• SIP URI: RFCs 3261 and 3263
• H.323 url-ID: H.323 specification, Annex O
• H.323 Email-ID: H.225.0 specification, Appendix IV
Resolve to conference room
ID
Looks for a conference room (virtual meeting room, or VMR) that matches the dial
string.
Resolve to virtual entry
queue
Looks for a shared-number entry queue that matches the dial string.
For this action: The system attempts to resolve the address as follows: