Prioritized call sessions

A system comprising:

• a call handling device and an alarm device;
• wherein the call handling device comprises:
• one or more first processors;
• and
• first memory storing first instructions that, when executed by the one or more first processors, cause the call handling device to:
• receive, from the alarm device, a request to establish a communication session;
• determine that a quantity of current session initiation protocol (SIP) sessions, being processed by the call handling device, satisfies a threshold;
• drop, based on the determining that the quantity of current SIP sessions satisfies the threshold, one of the current SIP sessions;
• and
• establish a new SIP session for the alarm device;
• wherein the alarm device comprises:
• one or more second processors;
• and
• second memory storing second instructions that, when executed by the one or more second processors, cause the alarm device to:
• send the request to establish the communication session.

A non-transitory computer readable medium storing instructions that, when executed, cause:

• receiving, by a call handling device and from an alarm device, a request to establish a communication session;
• determining that a quantity of current session initiation protocol (SIP) sessions, being processed by the call handling device, satisfies a threshold;
• dropping, based on the determining that the quantity of current SIP sessions satisfies the threshold, one of the current SIP sessions;
• and
• establishing a new SIP session for the alarm device.