...
| Field | Description |
|---|---|
| ID | An automatically assigned ID from the system. |
| Name | A descriptive name for the trunk, which is used when selecting the trunk when configurations are made, for example in service numbers. |
| Incoming Number Pattern | Trunk groups can be matched based on the called number. For example, 49894614950% would match all incoming calls to the jtel main office in Munich. |
| SIP Source Server | Trunk groups can alternatively be matched based on the SIP source and destination server in the SIP From: and To: headers. This field affects the From: header match. Any match can be made here, but it is worth checking whether the incoming INVITE messages contain IP addresses or names (DNS) using wireshark. |
| SIP Destination Server | See SIP Source server. This field affects the To: header match. |
| SIP Invited Entity | Trunk groups can be matched on the invited entity in the INVITE message line (first line in the INVITE message). |
| Subscriber Country Code | For some number translators, the location of the system is used when converting numbers. This parameter is used to match the country code. For example, for jtel, 49 for Germany. |
| Subscriber Area Code | For some number translators, the location of the system is used when converting numbers. This parameter is used to match the area code. For example, for jtel, 89 for Munich. |
| Subscriber Prefix | For some number translators, the location of the system is used when converting numbers. This parameter is used to match the prefix (head number) of the system. For example, for jtel, 4614950, for the head number of the PBX. |
| Outgoing Trunk Selection Trunk Group for Internal Numbers | When an active call needs to start a further call (for example, an incoming call to the system results in a call to an agent), the trunk group specified here will be used to make that call, if an internal number is to be called. Internal numbers are identified by the Internal Number Length parameter. It is not recommended to set any other trunk than "Same Group" unless you know exactly what you are going. |
| Outgoing Trunk Selection Trunk Group for External Numbers | When an active call needs to start a further call (for example, an incoming call to the system results in a call to an external destination), the trunk group specified here will be used to make that call, if an external number is to be called. External numbers are identified by the Internal Number Length parameter. It is not recommended to set any other trunk than "Same Group" unless you know exactly what you are going. |
| General access for outbound calls | If this flag is set, this trunk can be matched (by any client) and used to make an outbound call. This setting should only be applied for systems which are not used by multiple tenants. |
| Number Translator - Incoming Caller | All numbers should be translated to E.164 before they can be used in the system internally. This setting affects how the system translates the From or Calling Party Number into E.164. See below, for a list of available translators. |
| Number Translator - Incoming Called | This setting affects how the system translates the To or Called Party Number into E.164. See below, for a list of available translators. |
| Number Translator - Outgoing Caller | This setting affects how the system translates the internal E.164 number back to the format required by the telephony system, when an outgoing call is made. This setting affects the From or Calling Party Number. For some settings, a converter parameter is required. See below, for a list of available translators. |
| Number Translator - Outgoing Called | This setting affects how the system translates the internal E.164 number back to the format required by the telephony system, when an outgoing call is made. This setting affects the To or Called Party Number. For some settings, a converter parameter is required. See below, for a list of available translators. |
| Outgoing send P-Asserted Identity | If this option is checked, the SIP header P-Asserted-Identity will be set when an outgoing call is made. |
| P-Asserted-Identity (Dialler / click to dial - leg to agent) | This is the value used for the P-Asserted-Identity field, when calls are made to agents. Please specify a fully qualified SIP URI for die P-Asserted-Identity field, for example "0123456" <sip:0123456@myjtelserver.com>. Typical value: <sip:%P.Asserted.Identity.Number%@myjtelserver> |
| P-Asserted-Identity (All other cases) | This is the value used for the P-Asserted-Identity field, in all other cases. Please specify a fully qualified SIP URI for die P-Asserted-Identity field, for example "0123456" <sip:0123456@myjtelserver>. Typical value: <sip:%IFEQUALSTR(%CALLDIRECTION%,0,%CALLER%,%Service.ServiceNumbersRootNumber_%)%@myjtelserver> |
| Loopback Prevention | When the system makes an outgoing call to an agent, SIP history information (SIP history header) is provided if this is setup in the ACD group. If the history information is subsequently detected on an incoming call, then a loop has been produced (by call diversion) in the PBX. The system will reject such calls if this flag is set. |
| Outside Line Prefix | If the system determines, that an external call is to be made, then this prefix will be applied to the beginning of the number to access an outside line. Note: this is not recommended - the target SIP or telephony system should use E.164 to make routing more transparent. |
| Internal Number Length | To distinguish between internal and external numbers, this field is used. Numbers which are longer than this setting are considered external numbers. |
| Generate Incoming CDR | This field is used to generate CDRs on this trunk, and is not used in standard installations. |
| Generate Outgoing CDR | This field is used to generate CDRs on this trunk, and is not used in standard installations. |
Order of Matching
The following order of matching applies, the first trunk group found applies:
...